Patents by Inventor Carl E. Hagen

Carl E. Hagen 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: D287366
    Type: Grant
    Filed: October 19, 1983
    Date of Patent: December 23, 1986
    Assignee: Chipman-Union, Inc.
    Inventor: Carl E. Hagen