Patents by Inventor John V. Colan

John V. Colan 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).

  • Key holder
    Patent number: D306799
    Type: Grant
    Filed: July 1, 1986
    Date of Patent: March 27, 1990
    Assignee: Sheaffer Eaton Holdings (Delaware) Inc.
    Inventor: John V. Colan