Patents by Inventor Ed Duin

Ed Duin 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: D258316
    Type: Grant
    Filed: August 27, 1979
    Date of Patent: February 17, 1981
    Inventor: Ed Duin