Patents by Inventor Barry R. Mathis

Barry R. Mathis 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).

  • Casing for an electronic calculator
    Patent number: D244862
    Type: Grant
    Filed: September 25, 1975
    Date of Patent: June 28, 1977
    Assignee: Hewlett-Packard Company
    Inventor: Barry R. Mathis
  • Electronic calculator
    Patent number: D245107
    Type: Grant
    Filed: October 1, 1975
    Date of Patent: July 19, 1977
    Assignee: Hewlett-Packard Company
    Inventor: Barry R. Mathis
  • Computer mouse
    Patent number: D288930
    Type: Grant
    Filed: June 27, 1984
    Date of Patent: March 24, 1987
    Assignee: Hewlett-Packard Company
    Inventors: Lawrence E. Barbera, Barry R. Mathis