Patents by Inventor Willie Hempstead

Willie Hempstead 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).

  • Toilet seat accessory
    Patent number: D252889
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: September 11, 1979
    Inventor: Willie Hempstead
  • Toilet seat accessory
    Patent number: D252945
    Type: Grant
    Filed: October 26, 1977
    Date of Patent: September 18, 1979
    Inventor: Willie Hempstead
  • Toilet seat accessory
    Patent number: D260426
    Type: Grant
    Filed: February 25, 1980
    Date of Patent: August 25, 1981
    Inventor: Willie Hempstead
  • Resilient foot support
    Patent number: D335206
    Type: Grant
    Filed: January 16, 1992
    Date of Patent: May 4, 1993
    Inventor: Willie Hempstead