Patents by Inventor Ian Paul Wilkes

Ian Paul Wilkes 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).

  • Gypsum based formulations
    Patent number: 9688576
    Abstract: The formulation for making plasterboard with paper cover sheets comprises finely divided gypsum, a minor amount by weight of starch and, as crosslinking agent for the starch, a tri-functional reactive s-triazine having substituents at positions 2, 4 and 6 of the triazine ring which are reactive with the starch. A preferred crosslinking agent is 2,4,6-trichloro-s-triazine, which is preferably partially reacted with the starch before further reaction with the paper cover sheets for the plaster board.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: June 27, 2017
    Assignee: BPB Limited
    Inventors: Agnes Smith, Thierry Chotard, Cyrielle S. Dupas, Ian Paul Wilkes
  • Gypsum Based Formulations
    Publication number: 20150239779
    Abstract: The formulation for making plasterboard with paper cover sheets comprises finely divided gypsum, a minor amount by weight of starch and, as crosslinking agent for the starch, a tri-functional reactive s-triazine having substituents at positions 2, 4 and 6 of the triazine ring which are reactive with the starch. A preferred crosslinking agent is 2,4,6-trichloro-s-triazine, which is preferably partially reacted with the starch before further reaction with the paper cover sheets for the plaster board.
    Type: Application
    Filed: December 22, 2014
    Publication date: August 27, 2015
    Inventors: Agnes Smith, Thierry Chotard, Cyrielle S. Dupas, Ian Paul Wilkes
  • Process for reducing the set time of a settable slurry
    Patent number: 8523424
    Abstract: A process for reducing the set time a plaster slurry. The process comprises the steps of, providing a pre-determined amount of water, providing a pre-determined amount of the plaster, mixing the water and the plaster together at a first time to form a slurry, and, re-directing a portion of the slurry formed at the first time to combine with slurry formed at a second time.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: September 3, 2013
    Assignee: BPB Limited
    Inventors: Ian Paul Wilkes, Danny Lynham
  • Process for Reducing the Set Time of a Settable Slurry
    Publication number: 20110247526
    Abstract: A process for reducing the set time a plaster slurry. The process comprises the steps of providing a pre-determined amount of water, providing a pre-determined amount of the plaster, mixing the water and the plaster together at a first time to form a slurry, and, re-directing a portion of the slurry formed at the first time to combine with slurry formed at a second time.
    Type: Application
    Filed: March 23, 2009
    Publication date: October 13, 2011
    Inventors: Ian Paul Wilkes, Danny Lynham
  • Photofading inhibitor derivatives and their use in fabric treatment compositions
    Patent number: 5976397
    Abstract: A photofading inhibitor compound comprising a singlet oxygen quenching moiety having a quenching rate of 1.times.10.sup.6 L mol.sup.-1 S.sup.-1 or faster and a cationic moiety.
    Type: Grant
    Filed: September 26, 1997
    Date of Patent: November 2, 1999
    Assignee: Lever Brothers Company
    Inventor: Ian Paul Wilkes