Patents by Inventor David A. Wilkinson

David A. Wilkinson 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).

  • Publication number: 20110056014
    Abstract: The invention relates to a joint system for providing a joint between two sections of material. The joint system comprises a projection section (30) and a recess section (32) of respective sections of material to be joined. The projection and recess sections (30, 32) are adapted to interengage. The projection section (30) comprises at least two engagement portions (34, 36, 38, 40). Each engagement portion is either a male engagement portion (34, 38) or a female engagement portion (36, 40). The recess section (32) comprises at least two engagement portions adapted to engage the engagement portions of the projection section (30).
    Type: Application
    Filed: March 17, 2008
    Publication date: March 10, 2011
    Applicant: TAPLANES LIMITED
    Inventor: Andrew David Wilkinson
  • Patent number: 7747102
    Abstract: An optical correlator includes an image production device and an image capture device disposed in a common plane. An optical device such as a lens or mirror provides a Fourier transform of image information from the image production device onto the image capture device. An advantage of embodiments of the invention is its small size.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: June 29, 2010
    Assignee: Cambridge Correlators Limited
    Inventors: Nicholas James New, Timothy David Wilkinson
  • Patent number: 7706981
    Abstract: The present invention incorporates the use of geophysical, geological and formation evaluation data to develop synthetic stratigraphic columns based on depositional rules and sedimentary stacking patterns. The present invention utilizes dynamic assignment and matching whereby the synthetic columns can be easily conformed throughout the reservation characterization process as geological data becomes available.
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: April 27, 2010
    Assignee: Chevron U.S.A. Inc.
    Inventors: David A. Wilkinson, Deyi Xie
  • Publication number: 20100085496
    Abstract: An optical processing system is described that allows rapid evaluation of derivatives and partial derivatives by means of optical Fourier transformation. In embodiments, separate filtering steps are used to provide phase and amplitude changes.
    Type: Application
    Filed: March 10, 2008
    Publication date: April 8, 2010
    Applicant: Cambridge Correlators Ltd
    Inventors: Nicholas James New, Andrew John Lowe, Timothy David Wilkinson, John Robert Brocklehurst
  • Patent number: 7657494
    Abstract: A method utilizing genetic programming to construct history matching and forecasting proxies for reservoir simulators. Acting as surrogates for computer simulators, the genetic programming proxies evaluate a large number of reservoir models and predict future production forecasts for petroleum reservoirs.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: February 2, 2010
    Assignee: Chevron U.S.A. Inc.
    Inventors: David A. Wilkinson, Tina Yu, Alexandre Castellini
  • Publication number: 20090276157
    Abstract: Well log data is assigned depositional labels by a soft computing method. A model is trained on an expert-interpreted well log by segmenting, assigning fuzzy symbols to the segments, and calculating attribute values for units labeled by the expert. From these values, classifiers are trained for each of a number of depositional types. Finally, a model is developed for translating fuzzy symbols into depositional labels. Once trained, the model is applied to well log data.
    Type: Application
    Filed: May 1, 2008
    Publication date: November 5, 2009
    Inventors: David A. Wilkinson, Tina Yu
  • Publication number: 20090089317
    Abstract: Systems and methods for use in association with a master entity index system may allow data records to be grouped together into various entities, where each of the entities may represent a logical or physical item. These entities may also be associated with one another in a manner such that relationships between entities may likewise be represented. In one embodiment, an interface may be provided for use in conjunction with the master entity index system such that these various entities and relationships may be better managed, manipulated or visualized. This interface may allow a user to search for or otherwise obtain an entity, where a representation of this entity and one or more associated entities may be presented to the user along with representations of the relationships between these entities.
    Type: Application
    Filed: September 28, 2007
    Publication date: April 2, 2009
    Inventors: Aaron Dea Ford, Richard Gray Grashel, II, Scott Schumacher, David Wilkinson
  • Patent number: 7485028
    Abstract: The disclosure is directed to a chemical mechanical polishing retaining ring including a polymer matrix and a filler including polyimide. The chemical mechanical polishing retaining ring has a wear rate performance not greater than about 75 microns/hour.
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: February 3, 2009
    Assignee: Saint-Gobain Performance Plastics Corporation
    Inventors: David Wilkinson, Colleen E. Hamilton, Bryan David Hirschorn, Michael John Mangaudis
  • Publication number: 20080260671
    Abstract: A depilatory composition comprising a depilatory compound having a thiol group and a quinone and/or phenol compound.
    Type: Application
    Filed: June 15, 2005
    Publication date: October 23, 2008
    Applicant: Reckitt Benckiser (UK) Limited
    Inventors: Frederic De La Torre, Paul Andrew David Wilkinson
  • Publication number: 20080244008
    Abstract: Systems and methods for joining results in loosely collaborative data exchanges which include a plurality of nodes in communication with each other wherein a node is constrained from sharing payload data regarding a first subject, is allowed to share matching data regarding the first subject, and is further constrained to be separate from the other nodes. In some embodiments, a method includes receiving a set of virtual results from the constrained node including the matching data and excluding the payload data. The method also includes receiving results from the other nodes and determining whether any of the results correspond to the same subject. The method also includes, when any of the results correspond to the same subject, joining the corresponding portions in a hub separate from the constrained node. The joined results can be output.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 2, 2008
    Applicant: InitiateSystems, Inc.
    Inventors: David Wilkinson, Scott Schumacher, Martin E. Moseley
  • Publication number: 20080195319
    Abstract: The present invention incorporates the use of geophysical, geological and formation evaluation data to develop synthetic stratigraphic columns based on depositional rules and sedimentary stacking patterns. The present invention utilizes dynamic assignment and matching whereby the synthetic columns can be easily conformed throughout the reservation characterization process as geological data becomes available.
    Type: Application
    Filed: February 8, 2007
    Publication date: August 14, 2008
    Applicant: CHEVRON U.S.A. INC.
    Inventors: David A. Wilkinson, Deyi Xie
  • Publication number: 20080155769
    Abstract: A hand-held motorized household cleaning apparatus that includes a housing, a battery located in the housing, a motor located in the housing and connected to the battery, an output drive shaft connected to the motor, a cleaning attachment coupled for movement with the output drive shaft and a liquid delivery system with a pressurized reservoir. A flexible adapter is also provided.
    Type: Application
    Filed: March 19, 2008
    Publication date: July 3, 2008
    Applicant: BLACK & DECKER INC.
    Inventors: Todd Alan Schonewille, Richard Peter Rosa, Sean David Wilkinson, Corey Donald MacTavish, Jacob Richard Prosper, James Douglas Marshall, Oleksiy Petrovych Sergyeyenko, Vincent P. Cooper, David M. Shaver, Patrick Marcil
  • Patent number: 7363673
    Abstract: A hand-held motorized household cleaning apparatus that includes a housing, a battery located in the housing, a motor located in the housing and connected to the battery, an output drive shaft connected to the motor, a cleaning attachment coupled for movement with the output drive shaft and a liquid delivery system with a pressurized reservoir. A flexible adapter is also provided.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: April 29, 2008
    Assignee: Black & Decker Inc.
    Inventors: Todd Alan Schonewille, Richard Peter Rosa, Sean David Wilkinson, Corey Donald MacTavish, Jacob Richard Prosper, James Douglas Marshall, Oleksiy Petrovych Sergyeyenko, Vincent P. Cooper, David Michael Shaver, Patrick Marcil
  • Publication number: 20080082469
    Abstract: A method utilizing genetic programming to construct history matching and forecasting proxies for reservoir simulators. Acting as surrogates for computer simulators, the genetic programming proxies evaluate a large number of reservoir models and predict future production forecasts for petroleum reservoirs.
    Type: Application
    Filed: September 20, 2006
    Publication date: April 3, 2008
    Inventors: David A. Wilkinson, Tina Yu, Alexandre Castellini
  • Publication number: 20070037042
    Abstract: In a solid polymer fuel cell series, various circumstances can result in a fuel cell being driven into voltage reversal. For instance, cell voltage reversal can occur if that cell receives an inadequate supply of fuel. In order to pass current, reactions other than fuel oxidation can take place at the fuel cell anode, including water electrolysis and oxidation of anode components. The latter can result in significant degradation of the anode, particularly if the anode employs a carbon black supported catalyst. Such fuel cells can be made substantially more tolerant to cell reversal by using certain anodes employing both a higher catalyst loading or coverage on a corrosion-resistant support and by incorporating, in addition to the typical electrocatalyst for promoting fuel oxidation, certain unsupported catalyst compositions to promote the water electrolysis reaction.
    Type: Application
    Filed: August 14, 2006
    Publication date: February 15, 2007
    Inventors: Siyu Ye, Paul Beattie, Stephen Campbell, David Wilkinson, Brian Theobald, David Thompsett
  • Patent number: 7086939
    Abstract: In one embodiment, the disclosure is directed to a chemical mechanical polishing retaining ring. The chemical mechanical polishing retaining ring includes a support formed of a first material comprising a first polymer and a wear portion formed of a second material comprising a second polymer. The first material has an elastic modulus greater than the elastic modulus of the second material.
    Type: Grant
    Filed: March 19, 2004
    Date of Patent: August 8, 2006
    Assignee: Saint-Gobain Performance Plastics Corporation
    Inventors: David Wilkinson, Colleen E. Hamilton, Bryan David Hirschorn, Michael John Mangaudis
  • Publication number: 20050215181
    Abstract: The disclosure is directed to a chemical mechanical polishing retaining ring including a polymer matrix and a filler including polyimide. The chemical mechanical polishing retaining ring has a wear rate performance not greater than about 75 microns/hour.
    Type: Application
    Filed: February 8, 2005
    Publication date: September 29, 2005
    Inventors: David Wilkinson, Colleen Hamilton, Bryan Hirschorn, Michael Mangaudis
  • Publication number: 20050208881
    Abstract: In one embodiment, the disclosure is directed to a chemical mechanical polishing retaining ring. The chemical mechanical polishing retaining ring includes a support formed of a first material comprising a first polymer and a wear portion formed of a second material comprising a second polymer. The first material has an elastic modulus greater than the elastic modulus of the second material.
    Type: Application
    Filed: March 19, 2004
    Publication date: September 22, 2005
    Inventors: David Wilkinson, Colleen Hamilton, Bryan Hirschorn, Michael Mangaudis
  • Publication number: 20050129988
    Abstract: An electrochemical fuel cell stack comprises a plurality of fuel cell assemblies, wherein, each fuel cell assembly comprises a cell compressed between a pair of flow field plates, a perimeter seal circumscribing the cell and interposed between the pair of flow field plates, and a first diode, having an aspect ratio greater than 10:1, positioned adjacent to, and outside of, the perimeter seal along a first edge of the cell and interposed between the pair of flow field plates.
    Type: Application
    Filed: December 16, 2003
    Publication date: June 16, 2005
    Applicant: Ballard Power Systems Inc.
    Inventors: Shanna Knights, Jacob De Vaal, Michael Lauritzen, David Wilkinson
  • Publication number: 20040255410
    Abstract: A hand-held motorized household cleaning apparatus that includes a housing, a battery located in the housing, a motor located in the housing and connected to the battery, an output drive shaft connected to the motor, a cleaning attachment coupled for movement with the output drive shaft and a liquid delivery system with a pressurized reservoir. A flexible adapter is also provided.
    Type: Application
    Filed: February 12, 2004
    Publication date: December 23, 2004
    Inventors: Todd Alan Schonewille, Richard Peter Rosa, Sean David Wilkinson, Corey Donald MacTavish, Jacob Richard Prosper, James Douglas Marshall, Oleksiy Petrovych Sergyeyenko, Vincent P. Cooper, David Michael Shaver, Patrick Marcil