Patents by Inventor David E. Emmons

David E. Emmons 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).

  • Bird feeder
    Patent number: D320873
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: October 15, 1991
    Inventor: David E. Emmons
  • Bird feeder
    Patent number: D320874
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: October 15, 1991
    Inventor: David E. Emmons
  • Bird feeder
    Patent number: D320876
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: October 15, 1991
    Inventor: David E. Emmons