Patents by Inventor Raymond Gary Hollis

Raymond Gary Hollis 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).

  • Roofing screw
    Patent number: D418743
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: January 11, 2000
    Inventor: Raymond Gary Hollis
  • Roofing screw
    Patent number: D419431
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: January 25, 2000
    Inventor: Raymond Gary Hollis