Patents by Inventor John C. Heffernan

John C. Heffernan 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).

  • Automobile
    Patent number: D353350
    Type: Grant
    Filed: April 23, 1990
    Date of Patent: December 13, 1994
    Assignee: Rolls-Royce Motor Cars Limited
    Inventors: John C. Heffernan, Kenneth V. Greenley
  • Automobile
    Patent number: D353351
    Type: Grant
    Filed: April 23, 1990
    Date of Patent: December 13, 1994
    Assignee: Rolls-Royce Motor Cars Limited
    Inventors: John C. Heffernan, Kenneth V. Greenley