Patents by Inventor David L. Stead

David L. Stead 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).

  • Stool
    Patent number: D398453
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: September 22, 1998
    Inventor: David L. Stead
  • Stool
    Patent number: D410343
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: June 1, 1999
    Inventor: David L. Stead