Patents by Inventor Donald L. Hill

Donald L. Hill 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).

  • Patent number: 5775045
    Abstract: A door frame guard comprising, in accordance with an apparatus of the preferred embodiment of the present invention, a plurality of interface members and a linking member flexibly connected to the plurality of interface members. Each interface member of the plurality of interface members is sized interface appropriately with a respective surface of a door frame without extending into door frame corners or about door frame edges. Adjacent interface members define gaps which extend between a top edge and a bottom edge of the door frame guard in a direction substantially parallel to side edges of the door frame guard. The gaps and linking member enable adjacent interface members to rotate relative to one another and relative to the other interface members.
    Type: Grant
    Filed: January 18, 1997
    Date of Patent: July 7, 1998
    Inventor: Donald L. Hill