Patents by Inventor Philip W. Letcher

Philip W. Letcher 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).

  • Light fittings
    Patent number: 4428036
    Abstract: This invention relates to light fittings and in particular to a light fitting including a shade or surround in association with a source of light.
    Type: Grant
    Filed: November 22, 1982
    Date of Patent: January 24, 1984
    Inventor: Philip W. Letcher