Patents by Inventor David C. Graven

David C. Graven 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: D708115
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: July 1, 2014
    Inventor: David C. Graven