Patents by Inventor John P. Forr

John P. Forr 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).

  • Electrically heated window
    Patent number: 5182431
    Abstract: An electrical resistance heated window having at least three heatable zones and at least one of the heatable zones is generally centrally located on the window and can be heated faster to a higher temperature than the other of the zones for faster defogging and deicing of that particular zone.
    Type: Grant
    Filed: December 18, 1991
    Date of Patent: January 26, 1993
    Assignee: PPG Industries, Inc.
    Inventors: Harry S. Koontz, John P. Forr