Patents by Inventor David J. Stuart

David J. Stuart 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).

  • Patent number: 8916269
    Abstract: A method for preparing resin-impregnated graphite articles, including providing a sheet of compressed particles of exfoliated graphite having two major surfaces; impregnating the sheet with a first resin system to form a resin-impregnated sheet; surface treating the resin-impregnated sheet to form at least one structure on at least one of the major surfaces of the sheet to form a surface treated sheet; and treating the sheet with a second resin system.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: December 23, 2014
    Assignee: GrafTech International Holdings Inc.
    Inventors: Zdenka Brunovska, Bradley E. Reis, Jeffrey J. Gough, Lawrence K. Jones, Thomas W. Weber, David J. Stuart, Suha M. Yazici, Jeremy Klug, Franco Frate
  • Patent number: 8372539
    Abstract: A substrate useful for the formation of, inter alia, a flow field plate for a proton exchange membrane fuel cell, the substrate formed of at least one resin-impregnated sheet of compressed particles of exfoliated graphite comprising two major surfaces, the substrate having an active area with flow field channels thereon, the sheet of compressed particles of exfoliated graphite having a local web thickness in at least about 50% of its active area that is no more than about 55% greater than the minimum web thickness of the active area of the substrate.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: February 12, 2013
    Assignee: GrafTech International Holdings Inc.
    Inventors: Daniel W. Krassowski, Thomas W. Weber, David J. Stuart, Jeffery J. Gough, Robert A. Mercuri, Jeremy H. Klug
  • Publication number: 20120040141
    Abstract: A method for preparing resin-impregnated graphite articles, including providing a sheet of compressed particles of exfoliated graphite having two major surfaces; impregnating the sheet with a first resin system to form a resin-impregnated sheet; surface treating the resin-impregnated sheet to form at least one structure on at least one of the major surfaces of the sheet to form a surface treated sheet; and treating the sheet with a second resin system.
    Type: Application
    Filed: October 25, 2011
    Publication date: February 16, 2012
    Applicant: GrafTech International Holdings Inc.
    Inventors: Zdenka Brunovska, Bradley E. Reis, Jeffrey J. Gough, Lawrence K. Jones, Thomas W. Weber, David J. Stuart, Suha M. Yazici, Jeremy Klug, Franco Frate
  • Patent number: 8067091
    Abstract: A method for preparing resin-impregnated graphite articles, including providing a sheet of compressed particles of exfoliated graphite having two major surfaces; impregnating the sheet with a first resin system to form a resin-impregnated sheet; surface treating the resin-impregnated sheet to form at least one structure on at least one of the major surfaces of the sheet to form a surface treated sheet; and treating the sheet with a second resin system.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: November 29, 2011
    Assignee: GrafTech International Holdings Inc.
    Inventors: Zdenka Brunovska, Bradley E. Reis, Jeffrey J. Gough, Lawrence K. Jones, Thomas W. Weber, David J. Stuart, Suha M. Yazici, Jeremy Klug, Franco Frate
  • Publication number: 20080152917
    Abstract: A method for preparing resin-impregnated graphite articles, including providing a sheet of compressed particles of exfoliated graphite having two major surfaces; impregnating the sheet with a first resin system to form a resin-impregnated sheet; surface treating the resin-impregnated sheet to form at least one structure on at least one of the major surfaces of the sheet to form a surface treated sheet; and treating the sheet with a second resin system.
    Type: Application
    Filed: December 20, 2006
    Publication date: June 26, 2008
    Inventors: Zdenka Brunovska, Bradley E. Reis, Jeffrey J. Gough, Lawrence K. Jones, Thomas W. Weber, David J. Stuart, Suha M. Yazici, Jeremy Klug, Franco Frate
  • Publication number: 20080131756
    Abstract: A a substrate useful for the formation of, inter alia, a flow field plate for a proton exchange membrane fuel cell, the substrate formed of at least one resin-impregnated sheet of compressed particles of exfoliated graphite comprising two major surfaces, the substrate having an active area with flow field channels thereon, the sheet of compressed particles of exfoliated graphite having a local web thickness in at least about 50% of its active area that is no more than about 55% greater than the minimum web thickness of the active area of the substrate.
    Type: Application
    Filed: September 26, 2007
    Publication date: June 5, 2008
    Inventors: Daniel W. Krassowski, Thomas W. Weber, David J. Stuart, Jeffery J. Gough, Robert A. Mercuri, Jeremy H. Klug
  • Patent number: 5488423
    Abstract: Redeemable shopping coupons for products or information printouts in categories preferred by a consumer are printed in the consumer's premises when made available by a manufacturer or advertiser through the coupon and information service. Data identifying either or both product and information category and printout content are broadcast in conjunction with regular television programs and received in decoder-printer units in the homes of consumers subscribing to the service. If received product or information category data matches pre-programmed category data stored in the subscriber's unit, a printer in the unit is activated to generate a printout containing the received coupon data or other information. Operation of the subscriber's unit requires no interaction through the unit with the broadcasting service nor does operation of the unit affect operation of the subscriber's television set.
    Type: Grant
    Filed: November 17, 1994
    Date of Patent: January 30, 1996
    Assignee: U.S. Narrow Networks, Inc.
    Inventors: M. Jay Walkingshaw, Lorne R. Somerville, Anthony R. Esdaile, David J. Stuart