Patents by Inventor Robert Cass

Robert Cass 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).

  • Folding knife
    Patent number: D697781
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: January 21, 2014
    Assignee: The Ontario Knife Company
    Inventors: Kenneth Trbovich, Robert Cass
  • Knife
    Patent number: D749187
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: February 9, 2016
    Assignee: The Ontario Knife Company
    Inventors: Deneb Pirrone, Robert Cass, Kenneth Trbovich
  • Folding knife
    Patent number: D801775
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: November 7, 2017
    Assignee: THE ONTARIO KNIFE COMPANY
    Inventors: Paul Tsujimoto, Deneb Pirrone, Robert Cass, Kenneth Trbovich