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Duan, US

Baofu Duan, Carmel, IN US

Patent application numberDescriptionPublished
20090055411SYSTEM AND METHOD FOR PRECISELY HANDLING DURATION VALUES - A system and method for handling duration values includes associating a duration value with a start datetime to allow precise duration handling. Thus, a uniform time line approach may be used to handle duration arithmetic, comparisons, or other computations for duration values. For example, the uniform time line approach may characterize a duration value as a difference between two endpoints of a timeline segment having a length equal to the duration value. As a result, duration operations can be carried out with precision and accuracy using simple calendar calculations.02-26-2009

Biao Duan, Appleton, WI US

Patent application numberDescriptionPublished
20110083678SUPRAMOLECULAR COMPLEX FLAVOR IMMOBILIZING FOR CONTROLLED RELEASE OF FLAVOR IN SMOKING ARTICLES - A smokable composition includes (a) a smokable material; and (b) a supramolecular assembly. The supramolecular assembly comprises a flavorant and at least one selected from the group consisting of O,O′-dibenzoyl-(2R,3R)-tartaric acid, a hydrate thereof or a salt thereof, and ditoluoyl-(2R,3R)-tartaric acid, a hydrate thereof or a salt thereof. In addition, a smoking article comprises a rod of tobacco or tobacco substitute, optionally a filter attached to the rod, and the supramolecular assembly, as menthol-release agent.04-14-2011
20110083679IMMOBILIZED FLAVORANTS FOR FLAVOR DELIVERY - Disclosed is a copolymer that includes a repeat unit containing a flavorant-containing pendant and a salt-containing repeating unit. In addition, a comestible, a smoking composition, a smoking article, a smokeless tobacco composition and a heatable or combustible product are provided which incorporate one or more of the flavorant-containing copolymer.04-14-2011
20110253584WATER- AND HEAT-RESISTANT SCRATCH-AND-SNIFF COATING - A scratch-and-sniff coating is provided comprised of a first coating on a substrate having a water- and heat-resistant second coating thereon, the first coating being comprised of a non-encapsulated flavor/fragrance component and a polysaccharide component, and the second coating comprised of a shellac component. The scratch-and-sniff coating is made by forming a first coating comprised of a non-encapsulated flavor/fragrance component and a polysaccharide component and drying the first coating, and forming a water- and heat-resistant shellac-containing second coating on the first coating, and drying the second coating. An encapsulated flavor/fragrance component may optionally be present in the first coating. The scratch-and-sniff coating can be applied to a package for a consumer article.10-20-2011

Biao Duan, Henrico, VA US

Patent application numberDescriptionPublished
20110083680TOBACCO-FREE POUCHED PRODUCT CONTAINING FLAVOR BEADS PROVIDING IMMEDIATE AND LONG LASTING FLAVOR RELEASE - A tobacco-free oral pouch product providing immediate and long lasting flavor release comprises a pouch wrapper and tobacco-free flavor beads contained within the pouch wrapper. The flavor beads comprise at least one of microcrystalline cellulose, pectin and sodium alginate, at least one polymer having a higher solubility in saliva than microcrystalline cellulose, pectin and/or sodium alginate, and at least one flavorant. The pectin and sodium alginate are cross-linked. The tobacco-free flavor beads provide immediate release of the flavorant upon placement of a pouch product in a user's mouth and long lasting release of the flavorant for about 15 minutes to about 80 minutes. The oral pouch product contains only tobacco-free flavor beads.04-14-2011

Chaijie Duan, Port Jefferson, NY US

Patent application numberDescriptionPublished
20110237929BLADDER WALL THICKNESS MAPPING FOR TUMOR DETECTION - Disclosed is a method and apparatus for detection of a bladder wall tumor. Layers of a bladder wall are created by magnetic resonance imaging. A group of voxels having a lowest intensity is identified in a layer and an energy function modification enlarges the layer of the bladder wall. A partial volume image segmentation obtains tissue type mixture percentages in each voxel near inner and outer borders of the bladder wall in the layer of the bladder wall to obtain a bladder wall thickness. A range of uncertainty at the inner and outer borders of the bladder wall is obtained, and integration is performed of the bladder wall thickness along a path starting at a point on the outer border and ending at a corresponding point on the inner border.09-29-2011

Chunjie Duan, Brookline, MA US

Patent application numberDescriptionPublished
20110129234Iterative Carrier Phase Compensation in Coherent Fiber Optic Receivers - A method and an optical receiver compensates for an error in a phase of an optical signal in a receiver. The signal includes blocks of symbols in a sequence. Each block is decoded based on a partially phase compensated symbols, and an average phase error for the block is estimated. Forward phase compensation and backward phase compensation is performed on the block based on the average phase error, and the decoding, estimating, performing is iterated until a termination condition is satisfied to produce a phase compensated block.06-02-2011
20110194452Transmitting Data with Multiple Priorities as OFDM Symbols - A transmitter transmits data having a set of two or more priorities on subcarriers using orthogonal frequency division multiplexing (OFDM) symbols. The transmitter includes a media access (MAC) layer, wherein the MAC layer further includes a queue for storing data at each priority, a rate control block connected to each queue, and a physical (PHY) layer. The PHY layer further includes a channel coder for each priority, wherein each channel coder is connected to the corresponding queue to receive data, and to the rate control block to send coding information.08-11-2011

Daniel C. Duan, St. Paul, MN US

Patent application numberDescriptionPublished
20080262416Microneedle Arrays and Methods of Preparing Same - A microneedle array having a substrate and a plurality of microneedles extending out from the substrate with a multi-phase matrix coating on at least a portion of the microneedle surface of the microneedle array. The multi-phase matrix coating comprises an active substance and has a first solid phase and a liquid phase. The first solid phase comprises a water-soluble polymer. Also, a method of providing an active substance- containing matrix coating on a microneedle array in which a water-soluble polymer is applied to the microneedle surface of the array to form a dried coating of water-soluble polymer. A coating solution comprising an active substance, a liquid capable of phase separating from the water-soluble polymer, and a carrier fluid is prepared and applied to the dried coating of water-soluble polymer. At least a portion of the carrier fluid is removed from the array.10-23-2008
20080287858Microneedle Arrays and Methods of Use Thereof - A method of treating a patient with a microneedle array having an active agent disposed on at least a portion of one or more of the microneedles, wherein the array with active agent is characterized by a first optical response when probed with a selected incident light spectrum. The array with active agent is applied to a skin surface, optionally allowed to remain on the skin surface for a specified time, and removed. The used array is probed with the selected incident light spectrum, a second optical response is sensed, and the difference between the first optical response and the second optical response is determined and compared to a predetermined threshold value.11-20-2008
20110104362METHOD OF MAKING A DRY POWDER PHARMACEUTICAL COMPOSITION - A method of making active pharmaceutical ingredient particles with surface-modified nanoparticles deposited on the particles' surfaces, the method comprising: providing a plurality of media particles having surfaces with the surface-modified nanoparticles deposited on the surfaces; mixing the plurality of media particles with the active ingredient particles, both of which are in dry form, to provide active ingredient particles having surfaces with the surface-modified nanoparticles deposited on the surfaces; and separating the plurality of media particles from the active ingredient particles having surfaces with the surface-modified nanoparticles deposited on the surfaces is disclosed.05-05-2011

Patent applications by Daniel C. Duan, St. Paul, MN US

Dongsheng Duan, Columbia, MO US

Patent application numberDescriptionPublished
20080249052Synthetic mini/micro-dystrophin genes to restore nNOS to the sarcolemma - The present invention provides novel dystrophin mini/micro-genes that retain the essential biological functions of a full-length dystrophin gene. More particularly, the present invention provides to a series of synthetic mini/micro-dystrophin genes capable of restoring neuronal nitric oxide synthase (nNOS) to the sarcolemma. A method as well as a pharmaceutical composition for treatment of Duchenne Muscular Dystrophy (DMD), Becker Muscular Dystrophy (BMD), and X-linked Dilated Cardiomyopathy (XLDC) are also provided.10-09-2008
20100003218HYBRID-AAV VECTORS TO DELIVER LARGE GENE EXPRESSION CASSETTE - Hybrid adeno-associated virus (AAV) vector systems able to efficiently express therapeutic target genes larger than may be carried in a single AAV vector are provided, wherein a highly recombinogenic foreign DNA sequence is incorporated into two or more ITR-mediated AAV vectors. In one aspect of one embodiment, the novel hybrid AAV vector system is a hybrid dual AAV (hdAAV) vector system. In another aspect of one embodiment, the novel hybrid AAV vector system is a hybrid tri AAV (htAAV) vector system. A method of treating a clinical disease caused at least in part by a defective gene is provided, and comprises (1) providing a hybrid AAV vector system capable of expressing a therapeutic target gene, wherein the therapeutic target gene is capable of replacing, restoring or counteracting the effects of the defective gene; and (2) administering a therapeutic amount of said vector system to a subject wherein said therapeutic target gene is expressed at levels having a therapeutic effect.01-07-2010

Dongsheng Duan, Iowa City, IA US

Patent application numberDescriptionPublished
20080213221Compounds and methods to enhance rAAV transduction - Agents and methods to alter rAAV transduction are provided.09-04-2008
20080226600Adeno-associated viruses and uses thereof - The invention provides an isolated and purified DNA molecule comprising at least one DNA segment, a biologically active subunit or variant thereof, of a circular intermediate of adeno-associated virus, which DNA segment confers increased episomal stability, persistence or abundance of the isolated DNA molecule in a host cell. The invention also provides a composition comprising at least two adeno-associated virus vectors.09-18-2008
20090265796Adeno-associated virus vectors - The invention provides an isolated and purified DNA molecule comprising at least one DNA segment, a biologically active subunit or variant thereof, of a circular intermediate of adeno-associated virus, which DNA segment confers increased episomal stability, persistence or abundance of the isolated DNA molecule in a host cell. The invention also provides a composition comprising at least two adeno-associated virus vectors.10-22-2009

Patent applications by Dongsheng Duan, Iowa City, IA US

D. Roxanne Duan US

Patent application numberDescriptionPublished
20090203635HXAAA01 Polynucleotides - The present invention relates to novel human secreted proteins and isolated nucleic acids containing the coding regions of the genes encoding such proteins. Also provided are vectors, host cells, antibodies, and recombinant methods for producing human secreted proteins. The invention further relates to diagnostic and therapeutic methods useful for diagnosing and treating diseases, disorders, and/or conditions related to these novel human secreted proteins.08-13-2009

Faping Duan, Ithaca, NY US

Patent application numberDescriptionPublished
20110280835COMMENSAL BACTERIA AS SIGNAL MEDIATORS WITHIN A MAMMALIAN HOST - Genetically engineered cells and microorganisms are provided for preventing or ameliorating diseases through genetically engineered quorum signaling. Therapeutic methods for using the cells and microorganism to prevent or ameliorate diseases are also provided. The genetically engineered cells or microorganisms can be engineered to express a signal and used to interrupt the signaling-dependent virulence of an invading pathogen. The cells or microorganisms can be used to provide signal-dependent expression of a desirable gene in order to interrupt, prevent, and/or ameliorate a disease of mammals, such as parasitic diseases, infectious diseases, autoimmune diseases and genetic disorders.11-17-2011

Hongwei Duan, Decatur, GA US

Patent application numberDescriptionPublished
20110060036Branched Multifunctional Nanoparticle Conjugates And Their Use - Disclosed herein are compounds and compositions including a polyglycerol nanocarrier, a therapeutic agent or imaging agent, and optionally a targeting agent. In certain aspects the disclosed compounds include biocompatible hyperbranched polymer nanocarriers. Such compounds and compositions are useful for the targeted delivery of antitumor agents and imaging agents to tumors in vivo. Methods are also disclosed for detecting and treating such tumors.03-10-2011

Hui Duan, Boise, ID US

Patent application numberDescriptionPublished
20120102589POTYVIRUS RESISTANCE IN POTATO - The present invention is drawn to novel genes from wild plants, such as wild potato and pepper plants, that confer potyvirus resistance to plants, such as in transformed cultivated plants. Also encompassed are cultivated plants transformed with the novel gene, food products made from the transformed cultivated plants, and methods for making such plants and food products.04-26-2012

Huihui Duan, New Bedford, MA US

Patent application numberDescriptionPublished
20090106606METHOD AND APPARATUS FOR DETECTING AND ISOLATING CONTROLLER AREA NETWORK PERMANENT DOMINANT STATES - Detection of a permanent dominant state on a Controller Area Network node, occurring nearly simultaneously with development of the state, is used to the node from the network. Detection is independent of the application environment.04-23-2009
20100011199Method and device of bootloader-to-go - A method comprising two steps is provided for a simplified on-site bootloading process. Step 1: having a computer or similar device preload initialization instructions and executable codes to an intermediate device. Step 2: having that said device transfer such initialization instructions and executable codes to the operating device. The intermediate device named “bootloader-to-go” is provided in this invention. The said bootloader-to-go device provides the uncomplicated transferring of the initialization instructions and executable codes to the operating device without complex configuration steps. The said bootloader-to-go device is handheld, operated by a single operating switch and is equipped with versatile I/O bus connections compatible to operating devices with various I/O types. There is no need of a hosting computer or similar device on site, the bootloading speed is not controlled by a hosting computer, and therefore the bootloading time is predictable and can be repeated.01-14-2010
20100070748Device and methods for simulating controller area network signals - The invention relates to a device of generating simulation signals for Controller Area Network (CAN). The device in this invention simulates CAN data streams normally generated by electronic control units (ECUs) in automobiles, vehicles, boats, etc. without the presence of these ECUs. The device in this invention has a visual display of simulated signals' values. In addition, this invention reveals a remote terminal method and software. The remote terminal software in this invention can control the simulated signal via graphic user interfaces. The remote terminal software in this invention also displays the precise values of simulated signals via graphic user interfaces. Furthermore, this invention presents an advantageous method using a license identification management technique to change the functionality and features of the simulation device without any hardware modifications and without sending the device back to the device manufacturer.03-18-2010

Huihui Duan, Fort Wayne, IN US

Patent application numberDescriptionPublished
20110210605Methods and Circuits for Controlling a Battery Disconnect Switch - Redundant power supplies and redundant channels of communication maximize the probability that a controller will trigger a battery disconnect switch to open when commanded to do so.09-01-2011
20110210841System and Method for Indirect Indication of Tire Pressure Loss - A method of indirect tire pressure monitoring for indicating when a pneumatic tire on a wheel at one end of a motor vehicle axle is underpressurized relative to a pneumatic tire on a wheel at an opposite end of the axle while the vehicle is being driven on a road surface. ABS wheel sensors are used as inputs to a devoted processor for indirect tire pressure monitoring.09-01-2011

Jie Duan, Cincinnati, OH US

Patent application numberDescriptionPublished
20110235693Multi-Channel Active Noise Control System with Channel Equalization - A multiple error filtered-x least mean square (MEFxLMS) algorithm using a channel equalization virtual secondary path for an active noise control/cancellation (ANC) system for treating noise in a Multiple-Input Multiple-Output (MIMO) system. The channel equalization technique equalizes amplitude levels of the estimated response of all primary channels to overcome limitations caused by the frequency dependent property of standard filtered-x least mean square (FxLMS) algorithm, reduce the variation of convergence speed existed in the multiple channels, and improve the overall performance of the control system. The convergence property of the algorithm is analyzed in the frequency domain.09-29-2011

Jingwu Duan, Yardley, PA US

Patent application numberDescriptionPublished
20090075995MODULATORS OF GLUCOCORTICOID RECEPTOR, AP-1, AND/OR NF-kB ACTIVITY AND USE THEREOF - Novel non-steroidal compounds are provided which are useful in treating diseases associated with modulation of the glucocorticoid receptor, AP-1, and/or NF-κB activity, including inflammatory and immune diseases, having the structure of formula (I):03-19-2009
20090325961INDANE MODULATORS OF GLUCOCORTICOID RECEPTOR, AP-1, AND/OR NF-kB ACTIVITY AND USE THEREOF - Novel non-steroidal compounds are provided that are useful in treating diseases associated with modulation of the glucocorticoid receptor, AP-1, and/or NF-κB activity including obesity, diabetes, inflammatory and immune diseases having the structure of formula (I):12-31-2009
20110002952FUSED HETEROARYL MODULATORS OF GLUCOCORTICOID RECEPTOR, AP-1, AND/OR NF-kappaB ACTIVITY AND USE THEREOF - Novel non-steroidal compounds are provided which are useful in treating diseases or disorders associated with modulation of the glucocorticoid receptor, AP-1, and/or NF-κB activity, including metabolic and inflammatory and immune diseases or disorders, having the structure of formula (I): an enantiomer, diastereomer, or tautomer thereof, or a prodrug ester thereof, or a pharmaceutically-acceptable salt thereof, in which: Z is heterocyclo or heteroaryl; -A is a 5- to 8-membered carbocyclic ring or a 5- to 8-membered heterocyclic ring; B1 and B2 rings are pyridyl rings, wherein the B1 and B01-06-2011
20120082702NICOTINAMIDE COMPOUNDS USEFUL AS KINASE MODULATORS - Disclosed are nicotinamide compounds of Formula (I): or stereoisomers or pharmaceutically acceptable salts thereof. Also disclosed are methods of using such compounds in the treatment of at least one Btk associated condition, such as, for example, inflammatory disease, and pharmaceutical compositions comprising such compounds.04-05-2012

Patent applications by Jingwu Duan, Yardley, PA US

Jiwen F. Duan, Cary, NC US

Patent application numberDescriptionPublished
20090289133CONTINUOUS WET GRINDING PROCESS - A continuous wet grinding process is disclosed for comminuting material in a liquid, comprising one or more continuous wet grinding line. Said continuous wet grinding line comprises (1) two or more sealed wet grinders connected in cascade, (2) no unsealed container connected between said grinders, (3) a positive displacement pump connected before the first sealed wet grinder in said cascade to provide the required pressure by the process flow and to regulate flow rate, (4) one or more non-volume delivery pump connected before one or more of said grinders except the first grinder in said cascade to provide necessary pressure without changing flow rate. The invention also discloses a polyester composition that contains high quality inorganic filler such as carbon black, said inorganic filler is produced in said continuous wet grinding process, which has narrower particle size distribution and less coarse particles, therefore less breaks during fiber spinning.11-26-2009
20090292102METAL SULFATE ALCOHOL COMPOSITION AND PROCESS THEREWITH - A metal sulfate alcohol composition as well as a process to produce such composition is disclosed. Also disclosed is a process to produce polyester containing the metal sulfate alcohol composition.11-26-2009

Jiwu Duan, Tucson, AZ US

Patent application numberDescriptionPublished
20110068625DUAL LINE ACTIVE AUTOMATIC TRANSFER SWITCH - A dual line active automatic transfer switch (ATS) is provided. A first switch structure is connected to a first PSU of the plurality of PSUs, and operable between a first position connecting a first input line of the dual line and a second position connecting a second input line of the dual line with the one PSU. A second switch structure is connected to at least one additional PSU of the plurality of PSUs, and operable between a third position connecting the first input line and a fourth position connecting the second input line with the at least one additional PSU. The first and second switch structures are operable between each of the first, second, third, and fourth positions to alternatively connect each of the plurality of PSUs to one of the first and second input lines and connect, when each of the dual lines is charged, both of the first and second input lines to at least one of the plurality of PSUs.03-24-2011
20110225452APPARATUS TO MAINTAIN REDUNDANCY IN FOUR LINE SYSTEM - Exemplary embodiments adapted to distribute power from four input lines to a plurality of power supply units (PSUs) configured in an N+1 architecture are provided. In one such embodiment, a plurality of rectifier devices have first and second ends, each of the plurality of rectifier devices connected at the first end to one of the four input lines, and adapted to be bypassed by a first relay in a first operating mode and provide rectified input current in a second operating mode. A plurality of second relays is connected between each of the second ends of the plurality of rectifier devices. The plurality of second relays are adapted to be closed in the second operating mode to sum the rectified input current from each of the plurality of rectifier devices in a single node connecting each of the plurality of PSUs.09-15-2011

Jubao Duan, Skokie, IL US

Patent application numberDescriptionPublished
20080268436Schizophrenia, Schizoaffective Disorder and Bipolar Disorder Susceptibility Gene Mutation and Applications to Their Diagnosis and Treatment - The present invention provides the identification of a number of SNPs that are associated schizophrenia, schizoaffective disorder, bipolar disorder and related mental disorders which were found to be strongly linked to individuals with the disease. The invention provides SNP locations on human chromosome 6, as well as methods of making PCR primers and assays for detecting the SNPs in tested individuals.10-30-2008

Ling Duan, Katy, TX US

Patent application numberDescriptionPublished
20110010143TAR ESTIMATION - A method to predict tars and tar sands in petroleum exploration and production in a subsurface volume by building a viscoelastic property model of the volume using rock behavior including tars together with seismic inversion to derive a lithology volume identifying tars.01-13-2011
20120059633Methods and Devices for Transformation of Collected Data for Improved Visualization Capability - Rock physics guided migration is disclosed to enhance subsurface three-dimensional geologic formation evaluation. In one embodiment, a geologic interpretation is generated based on a seismic data volume. Sets of compaction and acoustic formation factor curves are generated, and these are combined into a set of velocity-relationship curves. A pore pressure is derived and used to establish a pore pressure state. A rock physics template is then generated utilizing the derived information. This rock physics template can be used to refine geologic formation evaluation with any suitable form of migration technique.03-08-2012

Luming Duan, Ann Arbor, MI US

Patent application numberDescriptionPublished
20080212186Long-distance quantum communication - The invention provides systems and methods enabling high fidelity quantum communication over long communication channels even in the presence of significant loss in the channels. The invention involves laser manipulation of quantum correlated atomic ensembles using linear optic components (09-04-2008

Maosheng Duan, Durham, NC US

Patent application numberDescriptionPublished
20090053172HETEROCYCLIC COMPOUNDS AS CCR5 ANTAGONISTS - The present invention relates to compounds of formula (I), or pharmaceutically acceptable derivatives thereof, useful in the treatment of CCR5-related diseases and disorders, for example, useful in the inhibition of HIV replication, the prevention or treatment of an HIV infection, and in the treatment of the resulting acquired immune deficiency syndrome (AIDS).02-26-2009
20100196321COMPOUNDS - The present invention features compounds of Formula (I) and (Ia), pharmaceutical compositions and use in the treatment of viral disease:08-05-2010
20110152237Chemical Compounds - Disclosed are compounds of Formula III. Also disclosed are salts of the compounds, pharmaceutical composition comprising the compounds or salts, and methods for treating HCV infection by administration of the compounds or salts.06-23-2011

Patent applications by Maosheng Duan, Durham, NC US

Maosheng Duan, Research Triangle Park, NC US

Patent application numberDescriptionPublished
20110263855PROCESSES AND INTERMEDIATES FOR CARBAMOYLPYRIDONE HIV INTEGRASE INHIBITORS - Processes are provided which create an aldehyde methylene, or hydrated or hemiacetal methylene attached to a heteroatom of a 6 membered ring without going through an olefinic group and without the necessity of using an osmium reagent. In particular, a compound of formula (I) can be produced from (II) and avoid the use of an allyl amine: (formulae I and II) where R, P10-27-2011

Mingming Duan, Spartanburg, SC US

Patent application numberDescriptionPublished
20100011199Method and device of bootloader-to-go - A method comprising two steps is provided for a simplified on-site bootloading process. Step 1: having a computer or similar device preload initialization instructions and executable codes to an intermediate device. Step 2: having that said device transfer such initialization instructions and executable codes to the operating device. The intermediate device named “bootloader-to-go” is provided in this invention. The said bootloader-to-go device provides the uncomplicated transferring of the initialization instructions and executable codes to the operating device without complex configuration steps. The said bootloader-to-go device is handheld, operated by a single operating switch and is equipped with versatile I/O bus connections compatible to operating devices with various I/O types. There is no need of a hosting computer or similar device on site, the bootloading speed is not controlled by a hosting computer, and therefore the bootloading time is predictable and can be repeated.01-14-2010
20100070748Device and methods for simulating controller area network signals - The invention relates to a device of generating simulation signals for Controller Area Network (CAN). The device in this invention simulates CAN data streams normally generated by electronic control units (ECUs) in automobiles, vehicles, boats, etc. without the presence of these ECUs. The device in this invention has a visual display of simulated signals' values. In addition, this invention reveals a remote terminal method and software. The remote terminal software in this invention can control the simulated signal via graphic user interfaces. The remote terminal software in this invention also displays the precise values of simulated signals via graphic user interfaces. Furthermore, this invention presents an advantageous method using a license identification management technique to change the functionality and features of the simulation device without any hardware modifications and without sending the device back to the device manufacturer.03-18-2010
20100119199REDUCED SIZE FIBER OPTIC PROBE USING MULTIPLE INCIDENT ANGLES - A method for manufacturing an optical probe which uses optical fibers arranged in parallel which can be easily bent by application of a heat source to improve the performance of the optical probe. The bend may be created by application of heat by a heat source and then forcing a change in the shape of the optical probe. Alternatively, an optical probe may be bent in room temperature and then by applying heat from a heat source, a bend can be created in the optical probe.05-13-2010

Ping Duan, Spring, TX US

Patent application numberDescriptionPublished
20090084539Downhole sealing devices having a shape-memory material and methods of manufacturing and using same - Sealing devices such as packers comprise a shape-memory material having a compressed run-in position or shape and an original expanded position or shape. The shape-memory material may comprise a polyurethane foam material held in the compressed run-in position by an adhesion material that is dissolvable by a fluid. The fluid may be a wellbore fluid already present in the wellbore or a fluid pumped down the wellbore after the sealing device is disposed within the wellbore. The fluid may also be a production fluid from the well. Upon being contacted by the fluid, the adhesion material dissolves and the shape-memory material expands to its original expanded position or shape, thereby sealing and dividing the annulus of the wellbore.04-02-2009
20090308614Coated extrudable ball seats - Ball seats comprising at least one sealing material facilitate restricting fluid flow through the ball seat when a plug, such as a ball, is landed on the seat. The plug is forced into the sealing material causing the sealing material to be deformed and to at least partially deform to a shape reciprocal to the shape of the plug, thereby reducing leakage around the plug and through the seat. In one particular embodiment, the ball seat is an extrudable ball seat. Suitable sealing materials include polymers and elastomers.12-17-2009
20100089565Shape Memory Polyurethane Foam for Downhole Sand Control Filtration Devices - Filtration devices may include a shape-memory material having a compressed run-in position or shape and an original expanded position or shape. The shape-memory material may include an open cell porous rigid polyurethane foam material held in the compressed run-in position at the temperature below glass transition temperature (T04-15-2010
20100236794Downhole sealing devices having a shape-memory material and methods of manufacturing and using same - Sealing devices such as packers comprise a shape-memory material having a compressed run-in position or shape and an original expanded position or shape. The shape-memory material may comprise a polyurethane foam material held in the compressed run-in position by an adhesion material that is dissolvable by a fluid. The fluid may be a wellbore fluid already present in the wellbore or a fluid pumped down the wellbore after the sealing device is disposed within the wellbore. The fluid may also be a production fluid from the well. Upon being contacted by the fluid, the adhesion material dissolves and the shape-memory material expands to its original expanded position or shape, thereby sealing and dividing the annulus of the wellbore.09-23-2010
20110162780Shape Memory Polyurethane Foam for Downhole Sand Control Filtration Devices - Filtration devices may include a shape-memory material having a compressed run-in position or shape and an original expanded position or shape. The shape-memory material may include an open cell porous rigid polyurethane foam material held in the compressed run-in position at the temperature below glass transition temperature (T07-07-2011

Patent applications by Ping Duan, Spring, TX US

Ping Duan, Cypress, TX US

Patent application numberDescriptionPublished
20120065309METHOD OF FORMING POLYMER NANOCOMPOSITE - A method for making a polymer composite comprises mixing, a thermosetting polymer precursor, and 0.01 to 30 wt % of a derivatized nanoparticle based on the total weight of the polymer composite, the derivatized nanoparticle including functional groups comprising carboxy, epoxy, ether, ketone, amine, hydroxy, alkoxy, alkyl, aryl, aralkyl, alkaryl, lactone, functionalized polymeric or oligomeric groups, or a combination comprising at least one of the forgoing functional groups.03-15-2012
20120065311POLYMER NANOCOMPOSITE - A polymer nanocomposite comprises a polymer; and a nanoparticle derivatized to include functional groups including carboxy, epoxy, ether, ketone, amine, hydroxy, alkoxy, alkyl, aryl, aralkyl, alkaryl, lactone, functionalized polymeric or oligomeric groups, or a combination comprising at least one of the forgoing functional groups. The variability in tensile strength and percent elongation for the polymer nanocomposite is less than the variability of these properties obtained where an underivatized nanoparticle is included in place of the derivatized nanoparticle.03-15-2012
20120067587POLYMER FOAM CELL MORPHOLOGY CONTROL AND USE IN BOREHOLE FILTRATION DEVICES - A method of deploying a borehole filtration device is provided utilizing the steps of: 03-22-2012

Qingfeng Duan, Herndon, VA US

Patent application numberDescriptionPublished
20080222077SYSTEM FOR DOCUMENT DIGITIZATION - A system for digitizing a set of documents, the documents belonging to a domain. The system includes an input module for providing documents in electronic form, a digitization module for digitizing the documents provided by the input module, an image repository and digitization database system, the image repository and digitization database system including an image repository, at least one digitization database and at least one knowledge base, a knowledge crawler/builder module for receiving data from the digitization database and building the knowledge base, and a delivery module for providing digitized data. A process for digitizing a set of documents is also provided.09-11-2008
20110243478SYSTEM FOR DOCUMENT DIGITIZATION - A system for digitizing a set of documents, the documents belonging to a domain. The system includes an input module for providing documents in electronic form, a digitization module for digitizing the documents provided by the input module, an image repository and digitization database system, the image repository and digitization database system including an image repository, at least one digitization database and at least one knowledge base, a knowledge crawler/builder module for receiving data from the digitization database and building the knowledge base, and a delivery module for providing digitized data. A process for digitizing a set of documents is also provided.10-06-2011

Rong Duan, Summit, NJ US

Patent application numberDescriptionPublished
20100138277PRODUCT MIGRATION ANALYSIS USING DATA MINING - A method and system for mining a database for product migration analysis includes querying product usage data for a legacy product and a new product from the database as time series data. The product usage data is representative for a large number of consumers of the legacy and new products. A mathematical model may be used to determine a relationship between the two time series data. Product migration values and other features related to product migration, such as a transition period of product usage, may be estimated, determined or predicted.06-03-2010

Runrun Duan, Liberty Lake, WA US

Patent application numberDescriptionPublished
20080305378Proton exchange membrane fuel cell - A proton exchange membrane fuel cell is described and which includes a proton exchange membrane having at least one gas diffusion layer which is juxtaposed relative thereto, and which is fabricated, at least in part, of a porous, electrically conductive, inorganic material which is selected from the group comprising metal diborides, metal disilicides, metal nitrides, metal carbides, and composites, laminates and solid solutions thereof.12-11-2008

Songyun Duan, Hawthorne, NY US

Patent application numberDescriptionPublished
20110313844REAL-TIME-READY BEHAVIORAL TARGETING IN A LARGE-SCALE ADVERTISEMENT SYSTEM - A “Real-Time-Ready Analyzer” combines a data stream management system (DSMS) with a map-reduce (M-R) framework to construct a streaming map-reduce framework that is suitable for real-time Behavioral Targeting (BT) (or other temporal queries). The Real-Time-Ready Analyzer allows users to write “dual-intent” temporal analysis queries for BT. These queries are succinct and easy to express, scale well on large-scale offline data, and can also work over real-time data. Further, the Real-Time-Ready Analyzer uses the aforementioned streaming map-reduce framework to provide dual-intent algorithms for end-to-end BT phases. Experiments using real data from an advertisement system show that the Real-Time-Ready Analyzer is very efficient and incurs orders-of-magnitude lower development effort than conventional systems.12-22-2011
20120047114ENFORCING QUERY POLICIES OVER RESOURCE DESCRIPTION FRAMEWORK DATA - A method of performing a graph query issued by a user is provided. The method includes performing on a processor, receiving a user graph query; rewriting the user graph query as a new query based on a query policy expressed in a graph query language; and performing the new query on graph data to obtain a result.02-23-2012
20120047124DATABASE QUERY OPTIMIZATIONS - A method of processing a query is provided. The method includes performing on a processor: receiving a database query that includes a plurality of predicates that associate a subject with an object, where one or more of the predicates is a variable predicate; generating at least one new query by selectively replacing the at least one variable predicate in the database query with a non-variable predicate; and performing the at least one new database query on a database to obtain a query result.02-23-2012
20120066166Predictive Analytics for Semi-Structured Case Oriented Processes - A method for predictive analytics for a process includes receiving at least one trace of the process, building a probabilistic graph modeling the at least one trace, determining content at each node of the probabilistic graph, wherein a node represents an activity of the process and at least one node is a decision node, modeling each decision node as a respective decision tree, and predicting, for an execution of the process, a path in the probabilistic graph from any decision node to a prediction target node of a plurality of prediction target nodes given the content.03-15-2012
20120101974Predicting Outcomes of a Content Driven Process Instance Execution - A method for predictive analytics in a semi-structured process including receiving traces of the semi-structured process, at least one of the traces including a document content value, determining a process model from the traces, the process model comprising tasks at nodes of the semi-structured process and embodies all possible execution sequences in the process, determining a probabilistic graph including a probability at each of the tasks of the semi-structured process advancing from one task to another task, and combining the process model and probabilistic graph to determine a probabilistic process model including probabilities and strengths of transitions between tasks.04-26-2012
20120102032METHOD TO PERFORM MAPPINGS ACROSS MULTIPLE MODELS OR ONTOLOGIES - Computer-implemented methods for mapping an element of a source information model to an element of a target information model, forming a cluster of elements for mapping across information models, and evaluating a mapping of elements across information models, and a system and computer program product thereof. The method of mapping an element of a source information model to an element of a target information model includes: receiving information for mapping a first element in a source cluster to an element in the target information model; mapping the first element to the target element using the received information for mapping the first element to the target element; and mapping all other elements in the source cluster to the target element.04-26-2012

Xiyu Duan, Ann Arbor, MI US

Patent application numberDescriptionPublished
20120075464VIDEO MONITORING SYSTEM - A monitoring system includes a camera adapted to capture images and output signals representative of the images. The camera may include one or more depth sensors that detect distances between the depth sensor and objects positioned within the field of view of the one or more cameras. A computer device processes the image signals and or depth signals from cameras and determines any one or more of the following: (a) whether a patient care protocol has been properly followed; (b) what condition a patient is in; (c) whether an infection control protocol has been properly followed; and (d) whether steps have been taken to reduce the risk of a patient from falling. Alerts may be issued if any conditions of importance are detected.03-29-2012

Xunbao Duan, Horsham, PA US

Patent application numberDescriptionPublished
20120076790ANTI-CD48 ANTIBODIES AND USES THEREOF - The present invention provides antibodies that bind to CD48 and methods of using same. According to certain embodiments of the invention, the antibodies are fully human antibodies that bind to human CD48. In certain embodiments, the antibodies of the present invention block the binding of CD48 to one or more CD48 receptor. The antibodies of the invention are useful, inter alia, for the treatment of diseases and disorders associated with one or more CD48 biological activities, including the treatment of allergic conditions and other inflammatory conditions.03-29-2012

Yixiang Duan, Los Alamos, NM US

Patent application numberDescriptionPublished
20090201500Hydrogen sensor - A hydrogen sensor for detecting/quantitating hydrogen and hydrogen isotopes includes a sampling line and a microplasma generator that excites hydrogen from a gas sample and produces light emission from excited hydrogen. A power supply provides power to the microplasma generator, and a spectrometer generates an emission spectrum from the light emission. A programmable computer is adapted for determining whether or not the gas sample includes hydrogen, and for quantitating the amount of hydrogen and/or hydrogen isotopes are present in the gas sample.08-13-2009

Patent applications by Yixiang Duan, Los Alamos, NM US

Youxun Duan, Somerville, NJ US

Patent application numberDescriptionPublished
20100247096Network Operating System With Topology Autodiscovery - The network operating system includes an embedded platform for controlling operation of an agile optical network at the physical layer level. At the module embedded level, each module (card-pack) is provided with an embedded controller EC that monitors and control operation of the optical modules. At the next level, each shelf is provided with a shelf processor SP that monitors and control operation of the ECs over a backplane network. All optical modules are connected over an optical trace channel to send/receive trace messages that can then be used to determine network connectivity. At the next, link management level, a network services controller NSC controls the SPs in a negotiated span of control, over a link network. The control is address-based; each NSC receives ranges of addresses for the entities in its control, and distributes these addresses to the SPs, which in turn distribute addresses to the ECs in their control. One of the SPs operates as a router on the link network to relay signaling and control to all entities based on their address. Each NSC constructs, from queried information, a network topology fragment for the embedded elements under its control. A distributed topology system (DTS) shares this topology information with neighboring NSC's to build a complete network view, which can be used by all interested network applications.09-30-2010

Zhenfeng Duan, Cambridge, MA US

Patent application numberDescriptionPublished
20120035126Compounds For Reducing Drug Resistance And Uses Thereof - This invention provides compounds capable of reducing drug resistance in a subject undergoing cancer treatment, methods using the compounds, compositions, and methods for identifying such compounds.02-09-2012

Zheng Duan, Hanover, NH US

Patent application numberDescriptionPublished
20080210670METHOD AND APPARATUS FOR AUTOMATIC GAS CONTROL FOR A PLASMA ARCH TORCH - A method and apparatus for controlling a gas supply to a plasma arc torch uses a proportional control solenoid valve positioned adjacent the torch to manipulate the gas flow to the torch, thereby extending electrode life during arc transfer and shutdown. Swirl ring design can be simplified and gas supply and distribution systems become less complicated. The invention also allows manipulation of shield gas flow to reduce divot formation when making interior cuts. The system can be controlled with a digital signal processor utilizing a feedback loop from a sensor.09-04-2008
20090255909Nozzle Head with Increased Shoulder Thickness - A consumable for a plasma arc torch, such as a nozzle, having a body and a head defining a shoulder portion having a frusto-conical portion and a flared portion. The flared portion increases the cross-sectional thickness to provide a greater heat-conduction path for removal of heat generated by a plasma arc, thereby extending consumable life. The frusto-conical portion provides a sharper, pointier nozzle head to simultaneously increase the operator's visibility of the workpiece. Methods of making and using the consumables are also included.10-15-2009
20090308849Method and Apparatus for Alignment of Components of a Plasma Arc Torch - A coolant tube and electrode are adapted to mate with each other to align the tube relative to the electrode during operation of the torch. Improved alignment ensures an adequate flow of coolant along an interior surface of the electrode. In one aspect, an elongated body of the coolant tube has a surface adapted to mate with the electrode. In another aspect, an elongated body of the electrode has a surface adapted to mate with the coolant tube. The surfaces of the tube and electrode may, for example, be flanges, tapered surfaces, contours, or steps.12-17-2009
20110062124PLASMA ARC TORCH PROVIDING ANGULAR SHIELD FLOW INJECTION - Plasma arc torches described herein include a torch tip with an improved nozzle that provides angular shield flow injection. In particular, the nozzle provides angular/conical impingement of a fluid (e.g., a shield gas) on an ionized plasma gas flowing through a plasma arc torch. Some of the torch tips described herein include a nozzle with a conical external shape combined with a shield with complementing internal geometry to form the angular fluid flow. As a result, a plasma arc torch including the improved nozzle have the benefits of a stabilized ionized plasma gas flow together with enhanced nozzle cooling and protection from reflecting slag during torch use.03-17-2011
20120012560Torch Flow Regulation Using Nozzle Features - A nozzle for a plasma arc torch includes a body having a first end and a second end. The nozzle also includes a plasma exit orifice located at the first end of the body. A flange is located at the second end of the body. The flange is adapted to mate with a corresponding consumable. The flange is configured to selectively block at least one gas passage in the corresponding consumable to establish a gas flow relative to the nozzle body.01-19-2012
20120012565Diffuser Shape Vent Slots in a Hand Torch Shield Castellation - A torch tip for a plasma arc torch includes a body having a first end, configured to attach to the torch, and a second end, where an end wall is disposed. A plasma exit orifice is formed in the end wall. At least two castellations are formed in the end wall. At least one slot is disposed between two castellations. Each slot is defined by a first and second castellation wall, and a slot floor. The first castellation wall is opposite the second castellation wall. The torch tip has at least one of the following characteristics: a slope of the slot floor within the at least one slot tapers in an outward radial direction relative to the plasma exit orifice toward the first end of the body, or a distance between the first and second castellation walls along the slot floor increases with distance away from the exit orifice.01-19-2012

Patent applications by Zheng Duan, Hanover, NH US

Zhihui Duan, Ann Arbor, MI US

Patent application numberDescriptionPublished
20090071733Hybrid electric vehicle - A full hybrid electric vehicle comprises a heat engine, a one-way-clutch connected to the engine shaft, an electric motor, a planetary gear unit, a clutch with limited torque, and a transmission. The planetary gear unit includes at least a sun gear (an input element), a ring gear (an input element) and a pinion carrier (an output element). The torque-limited clutch seats between two of the planetary gear elements. The engine is connected to and applies torque on one of the input elements. The electric motor is connected to and applies torque on the other input element. While the vehicle is running, the engine can be started smoothly by engaging the torque-limited clutch and controlling the motor torque, and a shock on the vehicle similar to a rough shift can be avoided.03-19-2009
20090166109Hybrid electric vehicle - A hybrid electric drive system for an automotive vehicle comprises a heat engine, an electric motor, a one-way-clutch, a torque-limiting clutch, and a transmission. The one-way-clutch disposed between the engine shaft and the motor shaft, and it can transmit torque from the engine shaft to the motor shaft. The transmission has an input shaft being connected to the motor shaft and an output shaft to drive the wheels. The torque-limiting clutch is also disposed between the engine shaft and the motor shaft. When it is disengaged, the torque-limiting clutch disconnects the motor shaft from the engine shaft, so the motor can solely drive the vehicle. When it is engaged, the clutch transmits a pre-determined level of torque from the motor shaft to the engine shaft in order to start the engine. The torque limiting clutch will smooth out the torque peak when the system starts the engine while the vehicle is running.07-02-2009
20100203995Hybrid electric vehicle - A full hybrid electric vehicle comprises a heat engine, a one-way-clutch connected to the engine shaft, an electric motor, a planetary gear unit, a clutch with limited torque, and a transmission. The planetary gear unit includes at least a sun gear (an input element), a ring gear (an input element) and a pinion carrier (an output element). The torque-limited clutch seats between two of the planetary gear elements. The engine is connected to and applies torque on one of the input elements. The electric motor is connected to and applies torque on the other input element. While the vehicle is running, the engine can be started smoothly by engaging the torque-limited clutch and controlling the motor torque, and a shock on the vehicle similar to a rough shift can be avoided.08-12-2010

Patent applications by Zhihui Duan, Ann Arbor, MI US