Patents by Inventor William C. Humphrey

William C. Humphrey 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).

  • Base for storing and carrying a propane torch and accessories
    Patent number: D308136
    Type: Grant
    Filed: May 1, 1986
    Date of Patent: May 29, 1990
    Assignee: Cooper Industries, Inc.
    Inventors: David S. Chapin, William C. Humphrey
  • Wheeled hopper for sandblasting machine
    Patent number: D332456
    Type: Grant
    Filed: May 31, 1991
    Date of Patent: January 12, 1993
    Assignee: Southern Case, Inc.
    Inventor: William C. Humphrey
  • Kite controller
    Patent number: D338927
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: August 31, 1993
    Assignee: Randy L. Burke
    Inventors: Randy L. Burke, William C. Humphrey
  • Hopper for sandblasting machine
    Patent number: D339361
    Type: Grant
    Filed: May 31, 1991
    Date of Patent: September 14, 1993
    Assignee: Southern Case, Inc.
    Inventor: William C. Humphrey