Pettigrew
Anthony Pettigrew, Heidelberg DE
Patent application number | Description | Published |
---|---|---|
20140369993 | STABILISED PROTEIN COMPOSITIONS BASED ON SEMIFLUORINATED ALKANES - The invention provides novel compositions of bioactive polypeptides and proteins with improved stability and shelf-life. The compositions are based on liquid vehicles selected from semifluorinated alkanes. These vehicles are remarkably effective in protecting polypeptides and proteins from degradation and/or aggregation. The compositions are useful for topical administration, e.g. into an eye, or by parenteral injection, e.g. via the subcutaneous or intramuscular route. | 12-18-2014 |
20150238605 | SEMIFLUORINATED ALKANE COMPOSITIONS - The invention provides novel compositions comprising semifluorinated alkanes and at least one compound sensitive or prone to oxidation. The compositions can be used as medicines that are topically administered to an eye or ophthalmic tissue. The invention further provides kits comprising such compositions. | 08-27-2015 |
Christopher Douglas Pettigrew, Toronto CA
Patent application number | Description | Published |
---|---|---|
20150322479 | APPARATUS AND METHOD FOR QUANTIFICATION OF REPLICATIVE LIFESPAN AND OBSERVATION OF SENESCENE - The present invention teaches an apparatus and method for the automated study of senescence of cells. The apparatus includes a plurality of plates, customized with a flow-through hole, arranged on a platform. A microscope with integrated camera is positioned above the platform and both microscope and platform are coupled to a rotation mechanism to allow relative rotation between the platform and the microscope. Cells are anchored magnetically, chemically, or electrostatically to the plates and are treated to a controlled environment. Daughter cells born from the mother cell are observed by the microscope and then washed, using a wash fluid, through the flow-through hole in the plate. A processor automates the process and allows for a user to input customizable test parameters and value thresholds to indicate a test is completed. The processor also organises test data in the form of a spreadsheet for simple modelling and data manipulation. | 11-12-2015 |
Dana Pettigrew, Airdrie CA
Patent application number | Description | Published |
---|---|---|
20120160502 | High Pressure Hydrocarbon Fracturing On Demand Method And Related Process - Method of fracturing, hydrocarbon deposits comprising using as source of water an aquifer containing water stable and clear in the aquifer but which may include undesirable soluble chemical compounds that are not in solution when subjected to reduced pressures at surface conditions such as hydrogen sulfide, | 06-28-2012 |
20120205112 | High Pressure Multistage Centrifugal Pump For Fracturing Hydrocarbon Reserves - The present invention relates to a multistage centrifugal pump design, which has the diffusers, impellors, and a shaft, inserted within a high pressure housing, such that this assembly is fully enclosed within the housing, and the housing is of sufficient strength to be suitable for safe pressure containment of the fluids being pumped. This invention describes the technical details used to reconfigure the multistage centrifugal pump design to increase the discharge pressure capabilities higher than the 6,000 prig of current designs. | 08-16-2012 |
20150083427 | HIGH PRESSURE MULTISTAGE CENTRIFUGAL PUMP FOR FRACTURING HYDROCARBON RESERVES - The present invention relates to a multistage centrifugal pump design, which has the diffusers, impellors, and a shaft, inserted within a high pressure housing, such that this assembly is fully enclosed within the housing, and the housing is of sufficient strength to be suitable for safe pressure containment of the fluids being pumped. This invention describes the technical details used to reconfigure the multistage centrifugal pump design to increase the discharge pressure capabilities higher than the 6,000 psig of current designs. | 03-26-2015 |
David Pettigrew, Cambridgeshire GB
Patent application number | Description | Published |
---|---|---|
20160003858 | ANALYTE EXTRACTION APPARATUS AND METHOD - Disclosed is a method and apparatus for determining a concentration of a glycopeptide antibiotic containing a phenol moiety such as Vancomycin in a complex sample matrix by extracting the glycopeptide antibiotic from a metered portion of the complex sample matrix by exposing said metered portion to an extraction material having an affinity with the glycopeptide antibiotic; and exposing the extraction material to a metered portion of an eluent for releasing the glycopeptide antibiotic from the extraction material; and by determining a concentration of the glycopeptide antibiotic by adding a Gibbs reagent (2,6 dichloroquinone-4chloroimide) to the metered portion of the complex sample matrix or the eluent; activating the Gibbs reagent and, after the reaction between the activated Gibbs reagent and the antibiotic has stabilized; detecting the reaction product of the activated Gibbs reagent and the antibiotic in said eluent; and determining the concentration of the antibiotic in the complex sample matrix from the detected reaction product. A method of designing a personalized drug administration regime using the thus obtained concentration is also disclosed. | 01-07-2016 |
David M. Pettigrew, Guildford GB
Patent application number | Description | Published |
---|---|---|
20110275111 | MICROFLUIDIC DEVICE FOR FULL BLOOD COUNT - The present invention provides a microfluidic device ( | 11-10-2011 |
David M. Pettigrew, Cambridgeshire GB
Patent application number | Description | Published |
---|---|---|
20120267259 | METHOD AND APPARATUS FOR DETECTING A LIPOPHILIC ANALYTE OF INTEREST IN A SAMPLE - Disclosed is a method and apparatus for detecting the concentration of a lipophilic analyte of interest in a complex sample matrix. The method comprises extracting the analyte of interest from said sample into an organic solvent comprising a dissolved electrolyte; providing a free radical species, preferably a free oxygen radical species, in said organic solvent; reacting the Canalyte of interest with said free radical species; and performing a measurement to detect the concentration of the free radical-reacted analyte reaction product. | 10-25-2012 |
David Michael Pettigrew, Huntingdon GB
Patent application number | Description | Published |
---|---|---|
20130302781 | ANALYTE DETECTION METHOD - Disclosed is a method of determining the presence of an analyte of interest by means of a detection of a reaction product between the analyte of interest and a reactant, the method comprising extracting the analyte of interest from a complex sample matrix; transferring the analyte of interest to an initial reaction mixture; performing a background measurement on the initial reaction mixture comprising at most a negligible concentration of the reaction product, wherein the reaction conditions present in said initial reaction mixture at least reduce the reaction rate of the formation of the reaction product such that the background measurement can be performed without a measurable change in said negligible concentration; altering the reaction conditions in the initial reaction mixture to accelerate said reaction rate; continuing said reaction until the concentration of the reaction product has stabilized; performing a second measurement on the resultant reaction mixture to obtain a signal correlated to said concentration; and determining the presence of the analyte of interest from a difference between the background measurement and the second measurement. In a preferred embodiment, the analyte of interest is Propofol (2,6-di-isopropylphenol), and the reactant is the activated Gibbs reagent (2,6-dichloroquinoneimine). | 11-14-2013 |
20130316464 | ANALYTE EXTRACTION APPARATUS AND METHOD - Disclosed is an apparatus for automatically extracting i2,6-diisopropylphenol (Propofol), from a complex sample matrix comprising cellular material, e.g. blood, the apparatus comprising a sample reception stage having on output for providing a defined quantity of the complex sample matrix; a mixing stage having a first input in fluidic connection with the output of the sample reception stage, a second input for receiving a lysing agent and an output for providing a mixture of the defined quantity of the complex sample matrix and the lysing agent; a delay stage having an input in fluidic connection with the output of the mixing stage and an output for providing the delayed mixture of the defined quantity of the complex sample matrix and the lysing agent; a filtering stage comprising a sorbent material for mechanically lysing the cellular material, said sorbent material having an affinity for binding Propofol, said filtering stage having an input in fluidic connection with the output of the delay stage; and a controller for controlling the flow rate of the mixture of the defined quantity of the complex sample matrix and the lysing agent through said delay stage. A method for such extraction is also disclosed. | 11-28-2013 |
Denis Pettigrew, Notre-Dame Du Portage CA
Patent application number | Description | Published |
---|---|---|
20090230057 | TERTIARY SYSTEM AND PROCESS FOR TREATING A LIQUID EFFLUENT FROM AN ONSITE DOMESTIC SECONDARY TREATMENT UNIT - Described are a tertiary disinfection system and process for treating a liquid effluent from a domestic secondary treatment unit. The liquid effluent has pathogenic micro-organisms, remaining suspended solids and dissolved organic pollutants. The system has an inlet, a subterranean initial treatment zone filled with a filtering material for removing some suspended solids, dissolved organic pollutants and pathogenic micro-organisms. The initial treatment zone allows the liquid effluent to percolate downward. The system also has a subterranean polishing zone extending horizontally outward from the initial treatment zone, and filled with a filtering material having pore sizes allowing upward capillary dispersion of the liquid effluent. The system also has a subterranean aeration zone having an interface with the initial treatment zone and the polishing zone, to provide aeration enabling aerobic accommodation of microflora for disinfection of the effluent. | 09-17-2009 |
Derek Pettigrew, Victoria CA
Patent application number | Description | Published |
---|---|---|
20080212309 | LIGHT EMITTING DIODE MODULE - A light emitting diode module which includes a hollow enclosed body having a transparent or translucent portion. A power source is disposed within the body. At least one light emitting diode is disposed within the body. The at least one light emitting diode is visible through the transparent or translucent portion of the body. A power circuit couples the at least one light emitting diode to the power source. An externally accessible switch is provided to open and close the power circuit so that the at least one light emitting diode can be turned on and turned off. | 09-04-2008 |
Doug Pettigrew, Wilsonville CA
Patent application number | Description | Published |
---|---|---|
20140328969 | HYBRID INJECTION MOLDING SYSTEM - An injection molding system includes a cavity assembly and a core assembly. The core assembly includes a core plate, a core skeleton secured to the core plate, and a removable core body insert defining a mold shape, secured to the core skeleton. The cavity assembly includes a core plate with a circular groove and a gate pad disposed in the groove, providing an entry point for liquefied resin material. The cavity assembly further includes a cavity insert disposed on the gate pad, forming an inner cavity for receiving liquefied resin material via the gate pad and for receiving the removable core body insert of the core assembly. The core assembly further includes a cavity skeleton with a circular opening for providing access to the inner cavity, disposed over the cavity insert and the gate pad, and secured to the cavity plate. | 11-06-2014 |
Jeremy Pettigrew, Burnaby CA
Patent application number | Description | Published |
---|---|---|
20110136802 | SHIP1 MODULATORS AND METHODS RELATED THERETO - Compounds of structure (I): | 06-09-2011 |
Jeremy D. Pettigrew, Burnaby CA
Patent application number | Description | Published |
---|---|---|
20150336935 | SHIP1 MODULATORS AND METHODS RELATED THERETO - Compounds of formula (I): where, n, R | 11-26-2015 |
John Douglas Pettigrew, Taringa Queensland AU
Patent application number | Description | Published |
---|---|---|
20090149769 | PLAID MOTION RIVALRY FOR DIAGNOSIS OF PSYCHIATRIC DISORDERS - A method and apparatus for diagnosing a psychiatric disorder or, a predisposition thereto, in a test subject is provided, wherein perceptual rivalry is measured in the test subject during exposure to a moving plaid stimulus. The method may include the step of determining an interhemispheric switch rate of the test subject, and comparing the switch rate with a corresponding reference switch rate to diagnose presence or absence of the psychiatric disorder. Particular psychiatric disorder s include mood disorders and schizophrenia. Also provided is use of the diagnostic method in genetic linkage studies for the identification of the molecular defect(s) underlying a psychiatric disorder, and for the identification of compounds which may alleviate the disorder. | 06-11-2009 |
John H.a. Pettigrew, Eagle Farm AU
Patent application number | Description | Published |
---|---|---|
20100260543 | CONNECTING MECHANISM - A method for connecting at least a first component ( | 10-14-2010 |
John Hamish Alexander Pettigrew, Eagle Farm AU
Patent application number | Description | Published |
---|---|---|
20120000060 | CONNECTING MECHANISM - A method for connecting at least a first component and a second component together, wherein each said component comprises at least one keyway arrangement extending along the component and keyways of the keyway arrangement are spaced apart from one another. The method comprises the steps of: aligning the keyway arrangements of the first and second components such that the keyways intermesh to provide a continuous keyway passage extending longitudinally between the intermeshed keyways; and, extending a keyway connector comprising an arrangement of keys longitudinally within the continuous keyway passage such that the keys are retained by the keyways of the keyway arrangements. In the slip flange assembly | 01-05-2012 |
John Hamish Alexander Pettigrew, Tennyson AU
Patent application number | Description | Published |
---|---|---|
20130097846 | KEY AND KEYWAY CONNECTORS - A method of mechanically connecting two or more components together. In one embodiment the method comprises the steps of: i. mounting at least one elongate keyway connector ( | 04-25-2013 |
20130239391 | CONNECTING METHOD - A method for connecting at least a first component ( | 09-19-2013 |
Marc Pettigrew, Sidney CA
Patent application number | Description | Published |
---|---|---|
20110037300 | SHOCK-ABSORBING SEAT SYSTEM - A shock-absorbing structure comprises a frame having front and rear sides. The frame provides mounting points for first and second shock-absorbing assemblies. The mounting points are located side-by-side across a transverse dimension of the frame and may be provided on a single frame member. The frame has front and rear faces each capable of supporting a linear slide to which a seat or other item may be attached. A first shock-absorbing assembly is mounted to the first mounting point and coupled to a first seat or other item supported on a linear slide on one of the front and rear faces of the frame. The shock absorbing structure may be applied to support seats in a boat or other vehicle. | 02-17-2011 |
Michael James Pettigrew, Toronto CA
Patent application number | Description | Published |
---|---|---|
20150322479 | APPARATUS AND METHOD FOR QUANTIFICATION OF REPLICATIVE LIFESPAN AND OBSERVATION OF SENESCENE - The present invention teaches an apparatus and method for the automated study of senescence of cells. The apparatus includes a plurality of plates, customized with a flow-through hole, arranged on a platform. A microscope with integrated camera is positioned above the platform and both microscope and platform are coupled to a rotation mechanism to allow relative rotation between the platform and the microscope. Cells are anchored magnetically, chemically, or electrostatically to the plates and are treated to a controlled environment. Daughter cells born from the mother cell are observed by the microscope and then washed, using a wash fluid, through the flow-through hole in the plate. A processor automates the process and allows for a user to input customizable test parameters and value thresholds to indicate a test is completed. The processor also organises test data in the form of a spreadsheet for simple modelling and data manipulation. | 11-12-2015 |
Steve Pettigrew, Montreal CA
Patent application number | Description | Published |
---|---|---|
20130024440 | METHODS, SYSTEMS, AND COMPUTER-READABLE MEDIA FOR SEMANTICALLY ENRICHING CONTENT AND FOR SEMANTIC NAVIGATION - Methods, systems and computer-readable media enable various techniques related to semantic navigation. One aspect is a technique for displaying semantically derived facets in the search engine interface. Each of the facets comprises faceted search results. Each of the faceted search results is displayed in association with user interface elements for including or excluding the faceted search result as additional search terms to subsequently refine the search query. Another aspect automatically infers new metadata from the content and from existing metadata and then automatically annotates the content with the new metadata to improve recall and navigation. Another aspect identifies semantic annotations by determining semantic connections between the semantic annotations and then dynamically generating a topic page based on the semantic connections. | 01-24-2013 |
20140074845 | METHODS, SYSTEMS, AND COMPUTER-READABLE MEDIA FOR SEMANTICALLY ENRICHING CONTENT AND FOR SEMANTIC NAVIGATION - Content of different formats may be sourced from various data sources such as content servers and ingested into a data integration server by an ingestion broker embodied on a non-transitory computer readable medium. The ingestion broker may normalize the content of different formats into a uniform representation that can be indexed and delivered across multiple digital channels for a variety of applications. The normalized content may be analyzed and semantic metadata may be determined from the normalized content. The normalized content can be semantically enriched by associating the semantic metadata and the like with the content. The semantic metadata can be stored in a semantic index that can be used for searching via the data integration server. During search, the semantic metadata can be instantiated as facets for user navigation and refinement of search criteria and additional semantic relationships can be assigned to the words in the normalized content. | 03-13-2014 |
20140122410 | RECONFIGURABLE MODEL FOR AUTO-CLASSIFICATION SYSTEM AND METHOD - A reconfigurable automatic document-classification system and method provides classification metrics to a user and enables the user to reconfigure the classification model. The user can refine the classification model by adding or removing exemplars, creating, editing or deleting rules, or performing other such adjustments to the classification model. This technology enhances the overall transparency and defensibility of the auto-classification process. | 05-01-2014 |
Warren Pettigrew, Halswell NZ
Patent application number | Description | Published |
---|---|---|
20150245961 | METHOD FOR PRODUCING OR CALIBRATING A CONTROL PROFILE FOR A WHEELCHAIR - A method and system for calibrating a control profile of a controller having at least one output variable used to control the operation of a mobility device. The calibration system controls the mobility device according to a prescribed routine under a range of changes of values of the output variable. One or more sensors provided, either temporarily or permanently, on the mobility device sense operational parameters of the mobility device and send sensed data to the calibration system. The calibration system determines mobility device stability associated with the changes of the at least one output variable based on the sensed data and produces a control profile that restricts a controller from outputting changes of values of the output variable associated with mobility device instability. | 09-03-2015 |
20150253975 | METHOD FOR PRODUCING A CONTROL PROFILE TO OPERATE A MOBILITY DEVICE - A mobility device profile generation system for producing a control profile for operating a mobility device. A system processor displays profile data stored in memory on a display device in the form of a graphical representation depicting a relationship between at least two variables associated with operating the mobility device. Using a human input device a user may interactively adjust the graphical representation to calibrate the relationship between the at least two variables to produce a control profile that limits the range of operation of a controller of a mobility device according to the graphical representation. This control profile may be loaded into a controller of a mobility device to limit operation according to the profile. | 09-10-2015 |
Warren Gordon Pettigrew, Halswell NZ
Patent application number | Description | Published |
---|---|---|
20140116799 | STEERING CONTROL SYSTEM AND METHOD FOR MANUAL WHEELCHAIRS - An electromechanical steering system for attachment to a manually operated wheelchair, the electromechanical steering system including: an input device arranged to develop an input signal, a motor and a wheel steering system driven by the motor and arranged to communicate with a wheel of the manually operated wheelchair to adjust a steering direction of the wheel based on the input signal. | 05-01-2014 |
Warren Gordon Pettigrew, Christchurch NZ
Patent application number | Description | Published |
---|---|---|
20090278532 | Angular position sensing device - An angular position sensing device suitable for use in a mobility vehicle, particularly as a speed control input device. First and second magnetic sensors are rotationally offset with respect to each other within a plane and orientated and connected such that their outputs are complementary and related to magnetic field direction. A magnetic field source is provided rotatable relative to the first and second sensors within the plane such as to vary the direction of a magnetic field applied to the first and second sensors. A sensing circuit monitors the outputs of the sensors and provides an output which may be used as a speed control input for an electric vehicle. The magnetic sensors are preferably giant magneto resistive magnetic sensors having a sine/cosine relationship. | 11-12-2009 |
20130035816 | METHOD AND CONTROL SYSTEM FOR CONTROLLING MOBILITY VEHICLES - A method of controlling at least one motor in a motorised mobility vehicle, wherein the motor is part of a drive circuit for mobilising the mobility vehicle, the method comprising the steps of: utilising a stored profile of a motor performance parameter to develop a compensation term for controlling the motor, wherein the stored profile is of a resistance based variable associated with the motor as a function of a further variable and dynamically updating the compensation term when the mobility vehicle is in use. | 02-07-2013 |
20140042944 | METHOD OR SYSTEM FOR MINIMIZING THE IMPACT OF BACK EMF SAMPLING FOR MOTOR RESISTANCE PROFILING - A method of determining when to utilise a back EMF sampling method for motor resistance profiling in at least one DC motor, the method including the steps of analysing a parameter prior to initialising the back EMF sampling method, and upon a determination that the analysed parameter is within a defined range, initialising the back EMF sampling method. | 02-13-2014 |