Patents by Inventor George John

George John has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Separator for multi-phase slug flow and method of designing same
    Patent number: 7771522
    Abstract: A slug flow separator facilitates the separation of a mixture flow into component parts. The separator includes an upper-tier elongate conduit, a lower-tier elongate conduit and a plurality of spaced apart connectors. Each of the upper and lower-tier elongate conduits has an outlet and at least one of the upper and lower-tier elongate conduits has an inlet for receiving the mixture flow. The upper and lower-tier elongate conduits also each have a plurality of openings such that one connector of the plurality of connectors may interconnect one of the upper-tier elongate conduit openings with a one of the lower-tier elongate conduit openings. The connectors enable communication of at least one of a liquid component and the at least one of another liquid component and a gas component of the mixture flow therebetween.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: August 10, 2010
    Assignee: Shell Oil Company
    Inventors: Jose Oscar Esparza, George John Zabaras
  • Method for preparing hydro/organo gelators from disaccharide sugars by biocatalysis and their use in enzyme-triggered drug delivery
    Publication number: 20100129451
    Abstract: A method for preparing hydro/organo gelators from disaccharide sugars by biocatalysis and their use in enzyme-triggered drug delivery. Controlled delivery of an anti-inflammatory, chemopreventive drug is achieved by an enzyme-triggered drug release mechanism via degradation of encapsulated hydrogels. The hydro- and organo-gelators are synthesized in high yields from renewable resources by using a regioselective enzyme catalysis and a known chemopreventive and anti-inflammatory drug, curcumin, is encapsulated in the gel matrix and released by enzyme triggered delivery. The release of the drug occurs at the physiological temperature and control of the drug release rate is achieved by manipulating the enzyme concentration and temperature. The by-products formed after the gel degradation clearly demonstrated the site specificity of degradation of the gelator by enzyme catalysis.
    Type: Application
    Filed: November 24, 2008
    Publication date: May 27, 2010
    Inventors: George John, Praveen Kumar Vemula
  • Two-source series inverter
    Patent number: 7719138
    Abstract: Systems and methods are disclosed for a two-source series inverter. The systems and methods combine operation of a first voltage source and a second voltage source in series powering a novel voltage combining arrangement and a conventional inverter via a switch configuration to power a load. The switch configuration is controlled by a plurality of control signals generated by a controller based on a variety of control modes, and feedback signals.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: May 18, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Gabriel Gallegos-Lopez, Milun Perisic, George John, Gregory S. Smith, Silva Hiti
  • Context-sensitive, self-adjusting targeting models
    Patent number: 7698410
    Abstract: In an embodiment, new traffic pattern data is received pertaining to a first time period having a first time increment. The traffic pattern data may be received as, or converted to, count information reflecting the probabilities that the user will select particular links services. An incremental table is accessed to determine stale traffic pattern count data, which is the traffic pattern count data in the incremental table over a second time period having the first time increment, wherein the second time period covers the oldest traffic pattern count data in the incremental table. Then a count table is updated to reflect removal of the stale traffic pattern count data, wherein the count table contains global count data at a higher level of granularity than the incremental table. The incremental table and count table are updated to reflect addition of the new traffic pattern data.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: April 13, 2010
    Assignee: Yahoo! Inc.
    Inventors: Amitabh Seth, Shu-Yao Chien, George John
  • Liquid-cooled inverter assembly
    Patent number: 7641490
    Abstract: An inverter assembly includes a housing and a substrate disposed in the housing. The substrate includes at least a first conductive layer patterned to include an alternating current (AC) path and a direct current (DC) path. A plurality of inverter switches is mounted on the substrate and electrically coupled to the AC path and the DC path.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: January 5, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Mark D. Korich, Gregory S. Smith, George John, David Tang, Karl D. Conroy
  • Steering damper
    Patent number: 7628258
    Abstract: A four chamber hydraulic steering damper where a two sided rotary vane moves working fluid from one side of each vane to the adjacent side of the same vane when rotated in synchronism with the steering mechanism. The working fluid is directed through narrow passageways that may be metered and/or valved. Each chamber may have a unique or similar pressure relief area creating varying dampening through the steering rotation. The damper may be affixed to the steering shaft directly or by linkage to the steering shaft or another moving component of the steering assembly.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: December 8, 2009
    Inventor: George John Athanasiou
  • Low distortion current switch
    Patent number: 7619552
    Abstract: A system and method is provided for code independent switching in a digital-to-analog converter (DAC). A synchronous digital circuit is triggered by a synchronizing clocking signal and develops a digital data signal. A circuit arrangement provides the synchronizing clock a constant load at every clocking cycle, thereby assuring a data independent load. By providing a data independent load to the synchronizing clock at every clocking cycle, third harmonic distortion is advantageously reduced.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: November 17, 2009
    Assignee: Analog Devices, Inc.
    Inventor: William George John Schofield
  • Three phase inverter with improved loss distribution
    Patent number: 7616466
    Abstract: An inverter circuit couples a DC voltage source having a primary side and a reference side to an electric motor or other AC machine having multiple electrical phases. An inverter circuit includes switches, diodes and a controller. For each of the electrical phases, a first switch couples the electrical phase to the primary side of the DC voltage source and a second switch couples the electrical phase with the reference side of the DC voltage source. For each of the first and second switches, an associated anti-parallel diode is configured to provide an electrical path when the switch associated with the diode is inactive.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: November 10, 2009
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Sibaprasad Chakrabarti, Silva Hiti, George John, Gregory S. Smith, Milun Perisic, Gholamreza Esmaili
  • INPUT CANCELLATION CIRCUIT
    Publication number: 20090267639
    Abstract: A system and method are provided for isolating an input without adding significant distortion and without significantly adversely affecting the bandwidth of input circuits. In one embodiment, a single ended signal is substantially cancelled by an arrangement including an input resistance path in parallel with a negative resistance path wherein both paths substantially match in resistance. In another embodiment, a differential signal is substantially cancelled by a pseudo differential arrangement including two independent input resistance paths each in parallel with a corresponding negative resistance path, wherein the resistance paths substantially match the input resistance paths.
    Type: Application
    Filed: April 24, 2008
    Publication date: October 29, 2009
    Inventors: William George John SCHOFIELD, Lawrence A. Singer
  • LOW DISTORTION CURRENT SWITCH
    Publication number: 20090267818
    Abstract: A system and method is provided for code independent switching in a digital-to-analog converter (DAC). A synchronous digital circuit is triggered by a synchronizing clocking signal and develops a digital data signal. A circuit arrangement provides the synchronizing clock a constant load at every clocking cycle, thereby assuring a data independent load. By providing a data independent load to the synchronizing clock at every clocking cycle, third harmonic distortion is advantageously reduced.
    Type: Application
    Filed: April 24, 2008
    Publication date: October 29, 2009
    Inventor: William George John SCHOFIELD
  • Input cancellation circuit
    Patent number: 7602169
    Abstract: A system and method are provided for isolating an input without adding significant distortion and without significantly adversely affecting the bandwidth of input circuits. In one embodiment, a single ended signal is substantially cancelled by an arrangement including an input resistance path in parallel with a negative resistance path wherein both paths substantially match in resistance. In another embodiment, a differential signal is substantially cancelled by a pseudo differential arrangement including two independent input resistance paths each in parallel with a corresponding negative resistance path, wherein the resistance paths substantially match the input resistance paths.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: October 13, 2009
    Assignee: Analog Devices, Inc.
    Inventors: William George John Schofield, Lawrence A. Singer
  • SEPARATOR FOR MULTI-PHASE SLUG FLOW AND METHOD OF DESIGNING SAME
    Publication number: 20090218278
    Abstract: A slug flow separator facilitates the separation of a mixture flow into component parts. The separator includes an upper-tier elongate conduit, a lower-tier elongate conduit and a plurality of spaced apart connectors. Each of the upper and lower-tier elongate conduits has an outlet and at least one of the upper and lower-tier elongate conduits has an inlet for receiving the mixture flow. The upper and lower-tier elongate conduits also each have a plurality of openings such that one connector of the plurality of connectors may interconnect one of the upper-tier elongate conduit openings with a one of the lower-tier elongate conduit openings. The connectors enable communication of at least one of a liquid component and the at least one of another liquid component and a gas component of the mixture flow therebetween.
    Type: Application
    Filed: April 21, 2009
    Publication date: September 3, 2009
    Inventors: Jose Oscar Esparza, George John Zabaras
  • SYSTEM AND METHOD FOR IMAGE DATA EXTRACTION AND ASSEMBLY IN DIGITAL CAMERAS
    Publication number: 20090214134
    Abstract: A system and method for data extraction and assembly in digital cameras is provided. The system and method provides the ability to extract symbol data, including textual and other character data from multiple camera images, and assemble the extracted symbol data into a composite document.
    Type: Application
    Filed: February 27, 2008
    Publication date: August 27, 2009
    Applicant: MOTOROLA, INC.
    Inventor: George John
  • Semiconductor cooling system for use in electric or hybrid vehicle
    Patent number: 7580261
    Abstract: A cooling system is provided for use in conjunction with a semiconductor assembly including a first semiconductor device and a second semiconductor device electrically coupled to the first semiconductor device by an elongated electrical connection. The cooling system includes a flow passage, a pump fluidly coupled to the flow passage, and an outlet array fluidly coupled to the flow passage and configured to direct a coolant fluid over the second semiconductor device. The outlet array has an interconnect feature formed therein configured to receive the elongated electrical connection there through.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: August 25, 2009
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Gregory Scott Smith, George John, Terence G. Ward, Edward P Yankoski, David F. Nelson
  • LIQUID-COOLED INVERTER ASSEMBLY
    Publication number: 20090154101
    Abstract: An inverter assembly includes a housing and a substrate disposed in the housing. The substrate includes at least a first conductive layer patterned to include an alternating current (AC) path and a direct current (DC) path. A plurality of inverter switches is mounted on the substrate and electrically coupled to the AC path and the DC path.
    Type: Application
    Filed: December 18, 2007
    Publication date: June 18, 2009
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: MARK D. KORICH, GREGORY S. SMITH, GEORGE JOHN, DAVID TANG, KARL D. CONROY
  • Semiconductor device package with base features to reduce leakage
    Patent number: 7541669
    Abstract: A semiconductor device package comprises a container including a base and sidewalls. The base is configured to support a semiconductor device chip, and a lead frame extends through at least one of the sidewalls. A portion of the lead frame within the sidewall has at least one aperture penetrating into the lead frame. The sidewall material extends into the aperture, thereby forming a strong interfacial bond that provides a low leakage, sidewall-lead-frame interface. The base has a reentrant feature that is positioned within the thickness of at least one of the sidewalls and engages the at least one sidewall, thereby forming a low leakage base-sidewall interface. The top surface of the base has a groove that is positioned within the thickness of at least one of the sidewalls and engages the at least one sidewall, thereby enhancing the low leakage base-sidewall interface.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: June 2, 2009
    Assignee: Agere Systems Inc.
    Inventors: Patrick Joseph Carberry, Jeffery John Gilbert, George John Libricz, Jr., Ralph Salvatore Moyer, John William Osenbach, Hugo Fernando Safar, Thomas Herbert Shilling
  • Separator for multi-phase slug flow and method of designing same
    Patent number: 7540902
    Abstract: A slug flow separator facilitates the separation of a mixture flow into component parts. The separator includes an upper-tier elongate conduit, a lower-tier elongate conduit and a plurality of spaced apart connectors. Each of the upper and lower-tier elongate conduits has an outlet and at least one of the upper and lower-tier elongate conduits has an inlet for receiving the mixture flow. The upper and lower-tier elongate conduits also each have a plurality of openings such that one connector of the plurality of connectors may interconnect one of the upper-tier elongate conduit openings with a one of the lower-tier elongate conduit openings. The connectors enable communication of at least one of a liquid component and the at least one of another liquid component and a gas component of the mixture flow therebetween.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: June 2, 2009
    Assignee: Shell Oil Company
    Inventors: Jose Oscar Esparza, George John Zabaras
  • Integrated circuit device having flexible leadframe
    Patent number: 7541220
    Abstract: An integrated circuit device having a flexible leadframe, and techniques for fabricating the flexible leadframe and integrated circuit device, are provided. In one aspect of the invention, an integrated circuit device comprises a heat spreader having a top surface and a bottom surface. At least one integrated circuit die is attached to the top surface of the heat spreader. A flexible leadframe is also attached to the top surface of the heat spreader. The flexible leadframe has one or more flexible layers, including at least one flexible insulating layer. A plurality of electrically conductive traces are defined on the at least one flexible insulating layer.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: June 2, 2009
    Assignee: Agere Systems Inc.
    Inventors: Timothy Brooks Bambridge, Jeffery J. Gilbert, Juan Alejandro Herbsommer, Jeffrey Michael Klemovage, George John Libricz, Jr.
  • Generator Cooling System and Method
    Publication number: 20090126658
    Abstract: The invention provides to a cooling system and a method of cooling an engine-driven generator. The engine-driven generator includes an engine, a current generator, and a housing. The engine includes an engine air intake, and the current generator includes a generator air intake. The housing includes a first outlet, a second outlet, a first air passageway, and a second air passageway. The first air passageway is in communication with the second air passageway. The second air passageway partitions air into a first stream supplied to the engine air intake and a second stream supplied to the generator air intake. The first stream exits through the first outlet, and the second stream exits through the second outlet.
    Type: Application
    Filed: November 20, 2008
    Publication date: May 21, 2009
    Inventors: Brian Todd Brunelli, Christopher Joseph Drew, George John Neary, John Richard Schneiker
  • Method and apparatus for a cold flow subsea hydrocarbon production system
    Patent number: 7530398
    Abstract: A system for assuring subsea hydrocarbon production flow in pipelines by chilling the hydrocarbon production flow in a heat exchanger and causing solids to form, periodically removing deposits and placing them in a slurry utilizing a closed loop pig launching and receiving systems.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: May 12, 2009
    Assignee: Shell Oil Company
    Inventors: Szabolcs Roland Balkanyi, James George Broze, Jose Oscar Esparza, Gregory John Hatton, Ajay Praful Mehta, Chien Kuei Tsai, Moye Wicks, III, George John Zabaras