Patents by Inventor David E. Justis

David E. Justis 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).

  • Subwoofer
    Patent number: D783577
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: April 11, 2017
    Assignee: Stillwater Designs and Audio, Inc.
    Inventors: Kyle A. Ambrose, David E. Justis
  • Subwoofer
    Patent number: D798837
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: October 3, 2017
    Assignee: Stillwater Designs and Audio, Inc.
    Inventors: Aaron L. Surratt, David E. Justis, Dennis A. Hotson
  • Loudspeaker
    Patent number: D807326
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: January 9, 2018
    Assignee: Stillwater Deisgns and Audio, Inc.
    Inventor: David E. Justis
  • Loudspeaker
    Patent number: D820815
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: June 19, 2018
    Assignee: Stillwater Designs and Audio, Inc.
    Inventor: David E. Justis