Patents by Inventor Richard Campfield

Richard Campfield 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).

  • Glass repair kit and method of use
    Patent number: 5116441
    Abstract: A kit (150) of parts from which tools may be assembled for the repair of glass cracks by insertion of resin having an index of refraction substantially that of the glass. The tools are a repair bridge (160) and a repair bar (180) which may be placed on an automobile windshield and used to inject resin into a glass crack and a crack spreader (170) which may be placed on the inside of a windshield and used to spread the crack to facilitate entry of the resin. Methods of use of the tools are disclosed.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: May 26, 1992
    Inventor: Richard A. Campfield, Jr.
  • Glass crack repair tool
    Patent number: D332380
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: January 12, 1993
    Inventor: Richard A. Campfield, Jr.
  • Glass crack repair tool
    Patent number: D336227
    Type: Grant
    Filed: September 28, 1992
    Date of Patent: June 8, 1993
    Assignee: Ultra Bond, Inc.
    Inventor: Richard A. Campfield, Jr.