Patents by Inventor Gerald T. Powers

Gerald T. Powers 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).

  • Pocket calculator
    Patent number: D321529
    Type: Grant
    Filed: June 8, 1989
    Date of Patent: November 12, 1991
    Inventor: Gerald T. Powers