Patents by Inventor William Steinhardt

William Steinhardt 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).

  • Patent number: D252638
    Type: Grant
    Filed: January 24, 1977
    Date of Patent: August 14, 1979
    Inventors: William Steinhardt, Kerry Nickerson