TREA

Stephen S. C. Poon

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  • Harlow, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hydrazide redox-dye-releasing compounds for photothermographic elem...
    • Patent number 5,492,803
    • Issue date Feb 20, 1996
    • Minnesota Mining and Manufacturing Company
    • Kevin D. Landgrebe
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Photothermographic elements
    • Patent number 4,981,775
    • Issue date Jan 1, 1991
    • Minnesota Mining and Manufacturing Company
    • Steven Swain
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Color photothermographic elements
    • Patent number 4,923,792
    • Issue date May 8, 1990
    • Minnesota Mining and Manufacturing Company
    • Duncan M. A. Grieve
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Color photothermographic elements
    • Patent number 4,883,747
    • Issue date Nov 28, 1989
    • Minnesota Mining and Manufacturing Company
    • Duncan M. A. Grieve
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Heat bleachable dye systems
    • Patent number 4,594,312
    • Issue date Jun 10, 1986
    • Minnesota Mining and Manufacturing Company
    • Gebran J. Sabongi
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Photothermographic element having topcoat bleachable antihalation l...
    • Patent number 4,581,323
    • Issue date Apr 8, 1986
    • Minnesota Mining and Manufacturing Company
    • Michael G. Fisher
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Dye-bleach materials and process
    • Patent number 4,548,896
    • Issue date Oct 22, 1985
    • Minnesota Mining and Manufacturing Company
    • Gebran J. Sabongi
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY