Patents by Inventor Dennis E. Gregory

Dennis E. Gregory 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).

  • Helicopter
    Patent number: D357894
    Type: Grant
    Filed: September 20, 1993
    Date of Patent: May 2, 1995
    Assignee: Bell Helicopter Textron Inc.
    Inventors: George E. Arnold, Dennis E. Gregory, Robert G. Anderson, Alan W. Myers