Patents by Inventor Stuart A. Mucklejohn

Stuart A. Mucklejohn 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: 6731068
    Abstract: A metal halide lamp comprised of a ceramic discharge chamber containing an ionizable fill, said fill comprising Hg, and halides (H) of Na, TI, an alkaline earth metal, and 0>rare earth element (Re)<15 as a molar fraction.
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: May 4, 2004
    Assignee: General Electric Company
    Inventors: James T. Dakin, James A. Leonard, Stuart A. Mucklejohn, Gergely Ormandlaky
  • Publication number: 20030102808
    Abstract: A metal halide lamp comprised of a ceramic discharge chamber containing an ionizable fill, said fill comprising Hg, and halides (H) of Na, TI, an alkaline earth metal, and 0>rare earth element (Re)<15 as a molar fraction.
    Type: Application
    Filed: December 3, 2001
    Publication date: June 5, 2003
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: James T. Dakin, James A. Leonard, Stuart A. Mucklejohn, Gergely Ormandlaky
  • Patent number: 6097137
    Abstract: An electrodeless discharge lamp comprises a sealed discharge vessel containing a fill capable of sustaining a discharge when suitably energized, and circuitry for energizing a solenoid to produce an RF electromagnetic field in the vessel to energize the fill. A light transmissive, inherently conductive, polymer layer is provided on the exterior of the discharge vessel for confining the RF field within the lamp. An outer, insulating layer may also be provided over the conductive layer.
    Type: Grant
    Filed: February 12, 1997
    Date of Patent: August 1, 2000
    Assignee: General Electric Company
    Inventors: Graham M. Forsdyke, Stuart A. Mucklejohn, Mahamed H. Girach
  • Patent number: 5994840
    Abstract: The envelope (6) of a light source is at least partly coated with electrochromic material (20), sandwiched between two conductive layers (21,22). A voltage applied to the electrochromic material by way of the conductive layers varies the intensity and/or color of the light from the source.
    Type: Grant
    Filed: February 12, 1997
    Date of Patent: November 30, 1999
    Assignee: General Electric Company
    Inventors: Graham M. Forsdyke, Stuart A. Mucklejohn
  • Patent number: 5086258
    Abstract: An electrodeless discharge tube containing a fill which comprises a metal carbonyl complex. Such a complex will be sufficiently volatile to produce a vapor pressure in a discharge tube in which a discharge can be generated. The discharge so generated emits a mixture of visible and infra-red radiation.
    Type: Grant
    Filed: October 4, 1990
    Date of Patent: February 4, 1992
    Assignee: Thorn EMI plc
    Inventors: Stuart A. Mucklejohn, David O. Wharmby