Patents by Inventor William G. Gridley

William G. Gridley 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).

  • Computer detectable manipulative
    Patent number: D726722
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: April 14, 2015
    Assignee: Kidtellect Inc.
    Inventors: Phylaktis Georgiou, William G. Gridley
  • Computer detectable manipulative
    Patent number: D726723
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: April 14, 2015
    Assignee: Kidtellect Inc.
    Inventors: Phylaktis Georgiou, William G. Gridley
  • Computer detectable manipulative
    Patent number: D727322
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: April 21, 2015
    Assignee: Kidtellect Inc.
    Inventors: Phylaktis Georgiou, William G. Gridley
  • Computer detectable manipulative
    Patent number: D727323
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: April 21, 2015
    Assignee: Kidtellect Inc.
    Inventors: Phylaktis Georgiou, William G. Gridley