Patents by Inventor George F. Wilkins

George F. Wilkins 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 shingle bearing release material with identifying indicia
    Patent number: 6237288
    Abstract: A composition roofing shingle is described which has release material affixed thereto for the purpose of identifying the compositional shingle with process parameters for the time frame of manufacture. The identification is achieved by marking the release material with planographic idicia by means such as printing, stamping and ink-jet spray application.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: May 29, 2001
    Assignee: CertainTeed Corporation
    Inventors: Robert L. Jenkins, George F. Wilkins, Michael J. Noone, Norman M. Robinson, Robert E. Oglesby
  • Method of providing identifying indicia to a roofing shingle
    Patent number: 5951809
    Abstract: A composition roofing shingle is described which has release material affixed thereto for the purpose of identifying the compositional shingle with process parameters for the time frame of manufacture. The identification is achieved by marking the release material with planographic idicia by means such as printing, stamping and ink-jet spray application.
    Type: Grant
    Filed: March 16, 1993
    Date of Patent: September 14, 1999
    Assignee: CertainTeed Corporation
    Inventors: Robert L. Jenkins, George F. Wilkins, Michael J. Noone, Norman M. Robinson, Robert E. Oglesby