TREA

Martin Rickwood

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  • Southport, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Photochromic compounds
    • Patent number 5,833,885
    • Issue date Nov 10, 1998
    • Pilkington PLC
    • Martin Rickwood
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Photochromic naphthopyran compounds
    • Patent number 5,623,005
    • Issue date Apr 22, 1997
    • Pilkington plc
    • Martin Rickwood
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Photochromic compounds
    • Patent number 5,520,853
    • Issue date May 28, 1996
    • Pilkington plc
    • Martin Rickwood
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Photochromic spiroxazine compounds
    • Patent number 5,446,150
    • Issue date Aug 29, 1995
    • Pilkington PLC
    • Martin Rickwood
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Bridged spiroxazine photochromic compounds
    • Patent number 5,446,149
    • Issue date Aug 29, 1995
    • Pilkington PLC
    • Martin Rickwood
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Photo reactive spiro-benzoxazine compounds
    • Patent number 5,446,151
    • Issue date Aug 29, 1995
    • Pilkington PLC
    • Martin Rickwood
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Photochromic articles
    • Patent number 4,913,544
    • Issue date Apr 3, 1990
    • Pilkington PLC
    • Martin Rickwood
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Spiro-oxazine compounds
    • Patent number 4,851,530
    • Issue date Jul 25, 1989
    • Pilkington PLC
    • Martin Rickwood
    • C07 - ORGANIC CHEMISTRY