Patents by Inventor Stuart David Farnworth

Stuart David Farnworth 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).

  • Ruler
    Patent number: D512927
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: December 20, 2005
    Assignee: Acme United Corporation
    Inventors: Javier Verdura, Wayne S. Marcus, Peter Michaelian, Stuart David Farnworth
  • Ruler
    Patent number: D515443
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: February 21, 2006
    Assignee: Acme United Corporation
    Inventors: Javier Verdura, Erik J. Moses, Daniel P. Sterling, Jonathan A. Lee, Stuart David Farnworth
  • Ruler
    Patent number: D531073
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: October 31, 2006
    Assignee: Acme United Corporation
    Inventors: Javier Verdura, Erik J. Moses, Daniel P. Sterling, Jonathan A. Lee, Stuart David Farnworth
  • Ruler with inlay strip
    Patent number: D554548
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: November 6, 2007
    Assignee: Acme United Corporation
    Inventors: Javier Verdura, Peter Michaelian, Stuart David Farnworth
  • Tape measure
    Patent number: D560522
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: January 29, 2008
    Assignee: Acme United Corporation
    Inventors: Stuart David Farnworth, James E. McCay
  • Scissors
    Patent number: D571632
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: June 24, 2008
    Assignee: Acme United Corporation
    Inventors: Michael E. Peterson, Stuart David Farnworth
  • Scissors
    Patent number: D572103
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: July 1, 2008
    Assignee: Acme United Corporation
    Inventors: Michael E. Peterson, Stuart David Farnworth
  • Scissors
    Patent number: D574685
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: August 12, 2008
    Assignee: Acme United Corporation
    Inventors: Michael E. Peterson, Stuart David Farnworth
  • Finger grip ruler
    Patent number: D576506
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: September 9, 2008
    Assignee: Acme United Corporation
    Inventors: Stuart David Farnworth, Jonathan A. Lee
  • Ruler with tapered groove
    Patent number: D576507
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: September 9, 2008
    Assignee: Acme United Corporation
    Inventors: Stuart David Farnworth, Jonathan A. Lee
  • Ruler with rounded ends
    Patent number: D576508
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: September 9, 2008
    Assignee: Acme United Corporation
    Inventors: Stuart David Farnworth, Jonathan A. Lee