Patents by Inventor Joseph T. Leighton

Joseph T. Leighton 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).

  • Gas fuel burner for fireplaces
    Patent number: D258309
    Type: Grant
    Filed: August 14, 1978
    Date of Patent: February 17, 1981
    Inventor: Joseph T. Leighton
  • Address sign
    Patent number: D354084
    Type: Grant
    Filed: April 1, 1994
    Date of Patent: January 3, 1995
    Inventor: Joseph T. Leighton