Patents by Inventor David Richard Koller

David Richard Koller 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: 6453870
    Abstract: An electrically conducting fuel filter mechanism for a fuel supply system for an internal combustion engine. The housing for the fuel filter has a conductive inner or core layer and at least one non-conductive outer layer positioned adjacent the fuel. The conductive layer is made from a non-conductive material with conductive fibers or powders mixed in it, while the non-conductive layer is free from the conductive materials. Any electrostatic or electrical charge buildup in the fuel filter, fuel or housing, will be dissipated through the inner non-conductive layer forming conductive paths directly to the conductive layer. This prevents any further charge buildup and pitting.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: September 24, 2002
    Inventors: David Richard Koller, De Quan Yu, Eric Roll, Ling Bai
  • Publication number: 20020083929
    Abstract: An electrically conducting fuel filter mechanism for a fuel supply system for an internal combustion engine. The housing for the fuel filter has a conductive inner or core layer and at least one non-conductive outer layer positioned adjacent the fuel. The conductive layer is made from a non-conductive material with conductive fibers or powders mixed in it, while the non-conductive layer is free from the conductive materials. Any electrostatic or electrical charge buildup in the fuel filter, fuel or housing, will be dissipated through the inner non-conductive layer forming conductive paths directly to the conductive layer. This prevents any further charge buildup and pitting.
    Type: Application
    Filed: December 28, 2000
    Publication date: July 4, 2002
    Inventors: David Richard Koller, De Quan Yu, Eric Roll, Ling Bai