Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Zhang, VA

Chenming Zhang, Blacksburg, VA US

Patent application numberDescriptionPublished
20080274501METHOD OF PURIFYING ACIDIC PROTEINS EXPRESSED IN PLANTS - The present invention provides a rapid and relatively simple process for purification of acidic proteins expressed in tobacco cells. The process comprises three main purification steps: precipitation with polyethyleneimine, column chromatography with a hydrophobic interaction resin, and column chromatography with hydroxyapatite. The process provides pure or essentially pure protein at a very high yield.11-06-2008

Fajian Zhang, Blacksburg, VA US

Patent application numberDescriptionPublished
20120230366Optical Digital Thermometer - The present invention is an optical digital thermometer, the novel non-contact digital optical thermometer is based on quantum theory of lightwaves, it can replace the conventional non-contact thermometers that are based on Planck's Law of Blackbody Radiation. The said invention points out four aspects of misunderstandings regarding relationship between temperature (thermal energy) and wave energy of a subject emulated by Boltzmann, Wien, Planck, Rayleigh, Hopkins and other scientists 130 years ago, namely: 09-13-2012

Guansheng Zhang, Hamilton, VA US

Patent application numberDescriptionPublished
20080218864OPTICAL SECURITY SYSTEM USING FOURIER PLANE ENCODING - A method of verifying the authenticity of an object is disclosed. The method may include encoding a primary image, convolving the encoded primary image with a random code, generating thereby a first reference image, transforming the first reference image, and correlating the first reference image with a second reference image.09-11-2008
20100040224OPTICAL SECURITY SYSTEM USING FOURIER PLANE ENCODING - A method of encrypting a set of data is disclosed. The method may include encoding a set of data with a first encryption key, and transforming the set of data encoded with the first encryption key. The method may also include using a second encryption key to encode the transformation of the set of data encoded with the first encryption key. The method may also include transforming the encoded transformation of the set of data encoded with the first encryption key generating thereby and encrypted set of data.02-18-2010

Guoqing Zhang, Charlottesville, VA US

Patent application numberDescriptionPublished
20090137057LUMINESCENT DIKETONATE POLYMERS - The present invention provides in one aspect polymeric luminescent dye compounds having fluorescent properties, phosphorescent properties, or both fluorescent and phosphorescent properties.05-28-2009

Guoying Zhang, Fairfax, VA US

Patent application numberDescriptionPublished
20130080434Systems and Methods for Contextual Analysis and Segmentation Using Dynamically-Derived Topics - Systems and methods are disclosed for contextual analysis and segmentation of information objects. According to one implementation, information objects, such as web pages and user profiles, may be analyzed to identify key terms. These key terms may be included in a contextual representation of an information object. By comparing the contextual representations of a plurality of information objects, one or more contextual segments (i.e., categories of information objects) may be created. Each contextual segment may also be associated with its own contextual representation. Once a contextual segment has been created, information objects may be assigned to the contextual segment. These contextual segments may be used to deliver targeted advertising, for example.03-28-2013
20130080439Systems and Methods for Contextual Analysis and Segmentation of Information Objects - Systems and methods are disclosed for contextual analysis and segmentation of information objects. In accordance with one implementation, information objects, such as web pages and user profiles, may be processed to obtain a list of key terms. An index may be created containing each of the information objects and associated key terms. Information objects may then be matched to contextual segments (i.e., categories of information objects) by submitting terms associated with the contextual segments against the index. Further, thresholding may be applied, so that only the most relevant information objects for a contextual segment are assigned to the contextual segment.03-28-2013

Huan Zhang, Falls Church, VA US

Patent application numberDescriptionPublished
20110027869Compositions for Chemical and Biological Defense - One aspect of the present invention relates to reactive compositions and methods of use thereof, wherein a metal oxide cluster is used to connect a reactive group (or groups) to the surface of a substrate. In certain embodiments, the reactive group in the compositions decomposes organophosphate agents through nucleophilic hydrolysis. In certain embodiments, the reactive group in the compositions is bactericidal. Remarkably, the use of metal oxide clusters in the disclosed compositions and methods permits incorporation of higher quantities of nucleophilic and bactericidal groups without the difficulties associated with having to pretreat the substrate prior to its association with the reactive groups.02-03-2011

Jianping Zhang, Falls Church, VA US

Patent application numberDescriptionPublished
20100161526Ranking With Learned Rules - Systems, methods and computer program products for the ranking of a target data set based on learned rules are disclosed. One embodiment is a method that includes generating a learned rule set from a training data record set, creating at least one prototype for each rule in the learned rule set to generate a prototype set, and ranking the target data record set using learned rule set and the prototype set. The generating of a learned rule set includes dividing the training data record set to a positive class and a negative class, and deriving the learned rule set for the positive class. Learning of rules includes deriving the most general projected rules with respect to remaining training data and then refining those rules, eventually selecting the best rules using an F-measure.06-24-2010

Le Zhang, Chesapeake, VA US

Patent application numberDescriptionPublished
20120133086MEASURING TIRE PRESSURE IN A TIRE MOLD - Pressure sensors may be used to directly measure the pressure between a green tire and a curing apparatus during shaping and/or during curing.05-31-2012

Shijun Zhang, Richmond, VA US

Patent application numberDescriptionPublished
201101661913-(2-amino-ethyl)-5-(3-cyclohexyl-propylidene)-thiazolidine-2,4-dione and its derivatives as multiple signaling pathway inhibitors and for the treatment of cancer - 3-(2-amino-ethyl)-5-(3-cyclohexyl-propylidene)-thiazolidine-2,4-dione and derivatives thereof are provided for use as dual inhibitors of the Raf/MEK/ERK and PI3K/Akt pathways and for use in the treatment of cancer.07-07-2011

Weijun Zhang, Richmond, VA US

Patent application numberDescriptionPublished
20080216852Banded cigarette paper with reduced ignition propensity - A cigarette made from cigarette paper comprising a base web and at least one banded region comprising iron oxide nanoparticles. The at least one banded region has a porosity less than a porosity of the base web such that the at least one banded region exhibits a slower burn rate compared to adjacent non-banded regions.09-11-2008
20090007925Smoking article filter having liquid additive containing tubes therein - Provided are filters including at least one impervious additive containing tube. A barrier, such as a liquid barrier, seals each end of the tube so as to contain additives, such as a liquid additive, within the additive containing tube. The one or more additive containing tubes are inserted into filters for smoking articles. Drawing action during a puff causes breach of the barrier and release of the additive into the surrounding filter material.01-08-2009
20090044816Smoking article having carbon dioxide delivery technology for sensorially improved carbon filtration and method of smoking - Provided is a smoking article including a filter, tobacco, and a carbon dioxide charge. The carbon dioxide charge provides increased levels of carbon dioxide during smoking to enhance the taste and sensorial smoking experience.02-19-2009

Patent applications by Weijun Zhang, Richmond, VA US

Wei-Jun Zhang, Richmond, VA US

Patent application numberDescriptionPublished
20110250324HYDROSOL BASED FLAVOR DELIVERY DEVICE - A handheld hydrosol delivery device includes a canister which is at least partially filled with a liquid formulation of one or more liquids and optional particles, and one or more propellants where at least one of the liquids, propellants, particles and combinations thereof is a flavor; a pressure valve which expels at least a portion of the liquid formulation and at least a portion of the propellant from the canister while dispersing the propellant into the liquid formulation forming a consumable flavored hydrosol comprising one or more gases dispersed within the liquid formulation, through a nozzle delivering the hydrosol to a user.10-13-2011

Xia Zhang, Sterling, VA US

Patent application numberDescriptionPublished
20090286514INTERACTIVE VOICE ACCESS AND RETRIEVAL OF INFORMATION - A system is responsive to voice commands and requests from a user to access and search distributed data resources. The system may include a speech recognition engine configured to receive a spoken command from the user. A processor is configured to identify a service requested by the user from the spoken command. A search engine is configured to associate the user with other services providing offerings available to the user. A speech synthesizer provides an output to the user that conveys the requested information. The processor may be configured to respond to a spoken selection made by the user to selectively provide the requested information and the offerings to the user. The speech synthesizer is responsive to the processor for converting the information retrieved from the selected service in a format that is audible to the user.11-19-2009
20100086109System, Method and Computer Program Product for Interactive Voice Notification and Product Registration - An automated product registration system registers a product in response to an incoming telephone call. Outbound telephonic notifications are sent based on user responses during the product registration. The notification can be a product recall alert, information about a complementary product and/or new feature the user showed interest in, and/or an option to extend warranty coverage. The system can transfer the user to a live agent when the user requests more information.04-08-2010
20130077772INTERACTIVE VOICE ACCESS AND NOTIFICATION SYSTEM - An interactive voice access and notification method includes monitoring one or more notification events associated with one or more recipients identified by a user to detect a trigger of the notification event(s). The method also includes initiating a call to the recipient(s) in response to detecting the trigger of the notification event(s). The method also includes playing back an interactive audible notification message received from the user in response to confirming the recipient(s) are on the call. The method further includes sending a confirmation response to the user when a response from the recipient(s) to the interactive audible notification message triggers a confirmation response.03-28-2013

Patent applications by Xia Zhang, Sterling, VA US

Xiaodong Zhang, Williamsburg, VA US

Patent application numberDescriptionPublished
20120259922Method and System for Scalable Content Storage and Delivery - A peer-to-peer communication system in which a peer communicating with a tracker node on a local torrent can locate and download files that are not currently available from other peers communicating on the local torrent. To enable this, the tracker node maintains collaboration information for a list of files. The collaboration information includes, for each file, a list of locations at which a full copy of the file may be located. The list of locations may include active peers, dormant peers and remote tracker nodes. The collaboration information may be obtained from each peer when it joins a local torrent. Upon joining the torrent, the peer may provide the local tracker node with a list of files that it is willing to serve.10-11-2012
20120265895System and Method for Streaming Media Objects - A method and system for streaming media objects. A streaming system includes a group of end nodes and at least one core node connected via an overlay network. The end nodes cache segments of media objects and stream the media objects to a client segment by segment. Each end node stores segment indices for locating segments cached on end nodes or a core node in the system. The core node is a dedicated proxy which fetches media objects from a remote media server and streams the media objects to a client when the media objects are unavailable from the end nodes.10-18-2012

Xiaopeng Zhang, Oak Hill, VA US

Patent application numberDescriptionPublished
20100174996Rendering Destination Instant Messaging Personalization Items Before Communicating With Destination - Perception of a personalization item in an instant messaging communications session may be enabled by perceiving an identifier corresponding to an intended instant message recipient designated by an instant message sender system, accessing personalization items corresponding to the perceived identifier, and making perceivable the personalization items corresponding to the received identifier to the instant messaging sender system for rendering in an instant messaging application running on the instant messaging sender system, where the personalization items are made perceivable prior to communication with the intended instant message recipient.07-08-2010

Y.h. Percival Zhang, Blacksburg, VA US

Y. H. Percival Zhang, Blacksburg, VA US

Patent application numberDescriptionPublished
20100170504CELLULOSE-SOLVENT-BASED LIGNOCELLULOSE FRACTIONATION WITH MODEST REACTION CONDITIONS AND REAGENT CYCLING - Embodiments of the present invention overcome the well-known recalcitrance of lignocellulosic biomass in an economically viable manner. A process and system are provided for the efficient fractionation of lignocellulosic biomass into cellulose, hemicellulose sugars, lignin, and acetic acid. The cellulose thus obtained is highly amorphous and can be readily converted into glucose using known methods. Fermentable hemicellulose sugars, low-molecular—weight lignin, and purified acetic acid are also major products of the process and system. The modest process conditions and low solvent/solid ratios of some embodiments of the invention imply relatively low capital and processing costs.07-08-2010

Yi-Heng Percival Zhang, Blacksburg, VA US

Patent application numberDescriptionPublished
20090017503Method and Apparatus for Saccharide Precipitation From Pretreated Lignocellulosic Materials - A method for separating saccharide components and lignin fractions from a concentrated acid treated lignocellulosic biomass is disclosed. The method involves precipitating the saccharide components by adding an organic solvent to the biomass slurry. The acid may then be recovered, for example, by filtration or by countercurrent washing and the organic solvent may be flashed and recycled. During acid recovery and organic recovery steps, two main lignocellulose components (hemicellulose and lignin) as well as minor components such as acetic acid are separated as well. The method decreases the amount of cellulase required for hydrolysis, increases hydrolysis rates, reduces formation of inhibitor molecules, increase sugar yields, produces high value by-products such as high quality lignin and hemicellulose, and decreases energy and equipment costs.01-15-2009

Yingchen Zhang, Blacksburg, VA US

Patent application numberDescriptionPublished
20100250168Accurate Magnetic Field Sensor and Method for Wireless Phasor Measurement Unit - A phasor measurement unit and method including a transducer for transduction measurement of an electrical characteristic of a current carrying element in electrical power generation or distribution systems, the transducer generating a transducer output signal representative of the electrical characteristic; an amplifier receiving the transducer output signal and generating an amplifier output signal; a filter receiving the amplifier output signal, low pass filtering the amplifier output signal. and generating a filter output signal; a digital to analog converter receiving the filter output signal and generating a digital output signal; and a processor receiving the digital output signal, calculating phasor data from the digital output signal and generating a data output signal, wherein the calculated phasor data is at least as accurate as phasor data from a phasor measurement unit or a frequency data recorder having a transducer for nontransduction measurement of the same electrical characteristic.09-30-2010

Yongda Zhang, Richmond, VA US

Patent application numberDescriptionPublished
20110269957SYNTHESIS OF INHIBITORS OF 11BETA-HYDROXYSTEROID DEHYDROGENASE TYPE 1 - Disclosed are syntheses of 11β-HSD1 inhibitors and corresponding intermediates that are promising for the treatment of a variety of disease states including diabetes, metabolic syndrome, obesity, glucose intolerance, insulin resistance, hyperglycemia, hypertension, hypertension-related cardiovascular disorders, hyperlipidemia, deleterious gluco-corticoid effects on neuronal function (e.g. cognitive impairment, dementia, and/or depression), elevated intra-ocular pressure, various forms of bone disease (e.g., osteoporosis), tuberculosis, leprosy (Hansen's disease), psoriasis, and impaired wound healing (e.g., in patients that exhibit impaired glucose tolerance and/or type 2 diabetes).11-03-2011

Zhengjian Zhang, Ashburn, VA US

Patent application numberDescriptionPublished
20120231447Surface Passivation Methods for Single Molecule Imaging of Biochemical Reactions - The present disclosure provides methods for treating a surface for single-molecule imaging.09-13-2012

Zhengping Zhang, Sterling, VA US

Patent application numberDescriptionPublished
20090005635Disposable device for vaginal cleaning and hygiene - An inflatable device (01-01-2009
20090014072Internal valve and methods of use for inflatable objects - An internal valve (01-15-2009

Zhengping Zhang, Alexandria, VA US

Patent application numberDescriptionPublished
20110100369Nasal Device for Obesity Prevention and Treatment - A nasal device (05-05-2011
20120055965PERSONAL PORTABLE DEVICE KEEPER - A personal portable devices keeper (03-08-2012

Zhenxing Zhang, Midlothian, VA US

Patent application numberDescriptionPublished
20120036627PORTABLE AND HANDICAP ACCESSIBLE SHOWER STALL - A portable shower stall suitable for a wheelchair-bound person to bathe with the help of an assistant, comprising of a self-supporting flexible shower base, a modular shower enclosure standing freely within the shower base, a hand-held sprayer connected to a kitchen faucet via hose, and a pump with puddle scoop attachment that drains the shower base. One sidewall of the shower base can be pressed down and fastened to the shower base bottom to facilitate wheelchair access, but it can be released and restored to upright position for water retention. Shower enclosure consists of two identical bi-fold shower screens clamping to each other to form a splash-proof rectangle. However, one or both screens can be removed from the shower base to provide access to the wheelchair-bound person.02-16-2012

Zhihong Zhang, Great Falls, VA US

Patent application numberDescriptionPublished
20100024013Authenticating a Client Using Linked Authentication Credentials - Techniques are provided for improving security in a single-sign-on context by providing, to a user's client system, two linked authentication credentials in separate logical communication sessions and requiring that both credentials be presented to a host system. Only after presentation of both credentials is the user authenticated and permitted to access applications on the host system.01-28-2010
20110265161MODIFYING A USER ACCOUNT DURING AN AUTHENTICATION PROCESS - Techniques are described for repairing some types of user account problems that interfere with granting a user access to a computer system and doing so during a process to authenticate the user in a way that does not require the user to re-enter authentication information or require the user to restart a communication session with the computer system. In response to a determination that a user's account has a problem during an authentication process, techniques are provided to enable a user to execute an appropriate process or processes to fix the user account, after which the authentication process continues. In this way, the correction to the user account may appear to be seamless to the user.10-27-2011

Patent applications by Zhihong Zhang, Great Falls, VA US

Zhong Zhang, Great Falls, VA US

Patent application numberDescriptionPublished
20110191195INTELLIGENT VIDEO VERIFICATION OF POINT OF SALE (POS) TRANSACTIONS - A method of monitoring a point of sale (POS) transaction including: receiving non video data regarding the POS transaction; defining exceptional transaction rules based at least on predetermined non video POS data events; inferring a potentially exceptional transaction based on a corresponding exceptional transaction rule and the received POS non video data; and verifying the inferred potentially exceptional transaction with video data regarding a corresponding POS transaction.08-04-2011