Patents by Inventor David Glenn Hoffman

David Glenn Hoffman 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).

  • Cap with a double front bill
    Patent number: D612134
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: March 23, 2010
    Inventor: David Glenn Hoffman