Patents by Inventor John Sigrist

John Sigrist 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).

  • Cover for an engine
    Patent number: D594476
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: June 16, 2009
    Assignee: Briggs and Stratton Corporation
    Inventors: Bart Mayer, John Sigrist, Carl Tiefenthaler, Michael Schultz
  • Rewind cover for an engine
    Patent number: D615557
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: May 11, 2010
    Assignee: Briggs and Stratton Corporation
    Inventors: Bart Mayer, John Sigrist, Carl Tiefenthaler, Michael Schultz