Patents by Inventor Colin Tonks

Colin Tonks 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).

  • Space heater
    Patent number: D294385
    Type: Grant
    Filed: October 25, 1985
    Date of Patent: February 23, 1988
    Assignee: TI Glow-Worm Limited
    Inventor: Colin Tonks
  • Space heater
    Patent number: D294386
    Type: Grant
    Filed: October 25, 1985
    Date of Patent: February 23, 1988
    Assignee: Ti Glow-Worm Limited
    Inventor: Colin Tonks