Patents by Inventor Darrell R. Phillips

Darrell R. Phillips 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).

  • Adjustable key for butt hinges
    Patent number: 5201097
    Abstract: The invention relates to a guide or key to be employed with a conventional butt hinge for different positioning of one leaf with respect to the other to be adjusted to raise or lower the door without removal of the pin upon which the leaves are mounted.
    Type: Grant
    Filed: March 20, 1992
    Date of Patent: April 13, 1993
    Inventor: Darrell R. Phillips