Patents by Inventor Geoff Ringle

Geoff Ringle 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).

  • Thermal printer tape ribbon cartridge
    Patent number: D311416
    Type: Grant
    Filed: February 1, 1988
    Date of Patent: October 16, 1990
    Assignee: Kroy Inc.
    Inventors: Michael M. Richardson, Geoff Ringle
  • Thermal printer
    Patent number: D317322
    Type: Grant
    Filed: January 31, 1989
    Date of Patent: June 4, 1991
    Assignee: Kroy Inc.
    Inventors: Michael M. Richardson, Geoff Ringle
  • Keyboard
    Patent number: D317594
    Type: Grant
    Filed: January 31, 1989
    Date of Patent: June 18, 1991
    Assignee: Kroy Inc.
    Inventors: Michael M. Richardson, Geoff Ringle