Patents by Inventor Stephen Duncan

Stephen Duncan 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).

  • High pressure fuel supply system for natural gas vehicles
    Patent number: 5884488
    Abstract: This invention relates to a medium and high pressure liquid natural gas fuel system for internal combustion engines and for other cryogenic systems.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: March 23, 1999
    Assignee: Westport Research Inc.
    Inventors: Anker Gram, Stephen Duncan Noble
  • Compressed natural gas cylinder pump and reverse cascade fuel supply system
    Patent number: 5868122
    Abstract: The invention relates to an apparatus and method for supplying high pressure gaseous fuel from a storage vessel to an internal combustion engine of a vehicle, or for other uses.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: February 9, 1999
    Assignee: Westport Research Inc.
    Inventors: Anker Gram, Stephen Duncan Noble
  • Electron source of a single crystal of lanthanum hexaboride emitting surface of (110) crystal plane
    Patent number: 4054946
    Abstract: An electron source using a single lanthanum hexaboride crystal oriented so the emitting surface is defined by a {110} crystal plane.
    Type: Grant
    Filed: September 28, 1976
    Date of Patent: October 18, 1977
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Stephen Duncan Ferris, David Charles Joy, Harry John Leamy, Louis David Longinotti, Paul Herman Schmidt