Patents by Inventor Frank R. Peterson

Frank R. Peterson 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).

  • Motorized garage door opener unlocking system
    Patent number: 5509233
    Abstract: This invention provides an existing garage door locking system with a motorized unlocking system that will unlock the garage door prior to motorized opening, but maintain garage accessability and security with the existing garage door locking system if a power or motorized garage door system failure occurs.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: April 23, 1996
    Inventor: Frank R. Peterson