Patents by Inventor Grant H Bourhill

Grant H Bourhill 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).

  • Triboluminescent materials and devices
    Patent number: 7270770
    Abstract: This invention relates to various phosphine oxides and their use in applications which exploit the triboluminescent effect.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: September 18, 2007
    Assignee: Qinetiq Limited
    Inventors: Ian C Sage, Grant H Bourhill, Iain Oswald
  • Triboluminescent materials and devices
    Publication number: 20040245504
    Abstract: This invention relates to various phosphine oxides and their use in applications which exploit the triboluminescent effect.
    Type: Application
    Filed: July 21, 2004
    Publication date: December 9, 2004
    Inventors: Ian C Sage, Grant H Bourhill, Iain Oswald
  • Triboluminescent materials in adhesive compositions for use in adhesive tape
    Publication number: 20040058150
    Abstract: The invention relates to the use of triboluminescent materials in paper products.
    Type: Application
    Filed: August 6, 2003
    Publication date: March 25, 2004
    Inventors: Norman J Geddes, Ian C Sage, Ian R Manson, Grant H Bourhill