Patents by Inventor William KEEN

William KEEN 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).

  • Patent number: 5939260
    Abstract: A method of diagnosing a disease associated with a genetic polymorphism in a vitamin D receptor gene comprises determining the genotype of said vitamin D receptor gene in an animal. The method can be used to diagnose predisposition or susceptibility to osteoarthritis. Compositions for said diagnosis are provided. Methods of treatment of osteoarthritis are provided, comprising identifying an individual having a predisposition or susceptibility to the disease and subsequently treating that individual.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: August 17, 1999
    Assignee: Gemini International Holdings Limited
    Inventors: Timothy David Spector, Richard William Keen
  • Patent number: 4214119
    Abstract: High voltage bushings for use within SF.sub.6 circuit breakers are provided with a tandem arrangement of an outer acid resistant gasket and an inner gas impervious gasket to prevent contact between the bushing oil and the SF.sub.6 gas.
    Type: Grant
    Filed: May 3, 1978
    Date of Patent: July 22, 1980
    Assignee: General Electric Company
    Inventor: William A. Keen, Jr.
  • Patent number: 4049047
    Abstract: A make-up tank is provided for two separate heat exchanger circuits operating at different temperatures, the tank having three compartments, a first compartment acting as a make-up tank for the first circuit, a third compartment as a make-up tank for the second circuit and a second or stagnant buffer compartment to separate the first and third compartments. A water level monitor and supply system is provided in one of the compartments only and the compartments are in restricted communication with each other.
    Type: Grant
    Filed: July 1, 1975
    Date of Patent: September 20, 1977
    Assignee: Marston Excelsior Limited
    Inventor: John William Keen
  • Patent number: D504337
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: April 26, 2005
    Assignee: Trimble Navigation Limited
    Inventors: Gregory Robin Price, Thomas William Keen
  • Patent number: D581297
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: November 25, 2008
    Assignee: Trimble Navigation Limited
    Inventor: Thomas William Keen