Patents by Inventor William E. Kengla

William E. Kengla 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: D681442
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: May 7, 2013
    Inventor: William E. Kengla