Patents by Inventor Robert J. Blickhahn

Robert J. Blickhahn 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).

  • Door closer and mounting bracket
    Patent number: 6298520
    Abstract: A door closer and mounting bracket for attaching the door closer to either the door or the door frame. The door closer includes two pins at one end for engaging corresponding holes on the mounting bracket and the mounting bracket includes a resilient clip for engaging the body of the door closer.
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: October 9, 2001
    Assignee: Schlage Lock Company
    Inventors: Robert J. Blickhahn, Scott C. Perry, James E. Jensen, Andy Current, Craig L. Lucas