Patents by Inventor Glenn Douglas Allen

Glenn Douglas Allen 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).

  • Tank gauge
    Patent number: D875586
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: February 18, 2020
    Assignee: R.W. Beckett Corporation
    Inventors: Christopher Allen Fildes, Jeffrey Robert Traczek, Glenn Douglas Allen, Timothy Ryan Brewster, Craig Arthur Butler, Brian Paul Smith