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Ka-Kong Chan

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  • Stanhope, NJ, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Anti-bacterial cephalosporin compounds
    • Patent number 5,147,871
    • Issue date Sep 15, 1992
    • Hoffmann-La Roche, Inc.
    • Harry A. Albrecht
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Asymmetric synthesis of natural vitamin E
    • Patent number 4,914,217
    • Issue date Apr 3, 1990
    • Hoffmann-La Roche Inc.
    • Ka-kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Asymmetric synthesis of natural vitamin E.
    • Patent number 4,913,851
    • Issue date Apr 3, 1990
    • Hoffmann-La Roche Inc.
    • Ka-kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Quinone intermediates for asymmetric synthesis of natural vitamin E
    • Patent number 4,900,476
    • Issue date Feb 13, 1990
    • Hoffmann-La Roche Inc.
    • Ka-kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Natural vitamin E intermediate
    • Patent number 4,898,962
    • Issue date Feb 6, 1990
    • Hoffmann-La Roche Inc.
    • Ka-kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Natural Vitamin E intermediate
    • Patent number 4,898,953
    • Issue date Feb 6, 1990
    • Hoffmann-La Roche Inc.
    • Ka-kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Asymmetric synthesis of natural vitamin E
    • Patent number 4,855,085
    • Issue date Aug 8, 1989
    • Hoffmann-La Roche Inc.
    • Ka-kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Asymmetric synthesis of natural vitamin E
    • Patent number 4,831,185
    • Issue date May 16, 1989
    • Hoffmann-La Roche Inc.
    • Ka-kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Unsaturated eicosanoic acids
    • Patent number 4,642,364
    • Issue date Feb 10, 1987
    • Hoffmann-La Roche Inc.
    • Ka-Kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Unsaturated eicosanoic acids
    • Patent number 4,599,443
    • Issue date Jul 8, 1986
    • Hoffmann-La Roche Inc.
    • Ka-Kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Unsaturated eicosanoic acids
    • Patent number 4,500,462
    • Issue date Feb 19, 1985
    • Hoffmann-La Roche Inc.
    • Ka-Kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    5(Halophenyl)-2-fluoro-pentadienals
    • Patent number 4,395,575
    • Issue date Jul 26, 1983
    • Hoffmann-La Roche, Inc.
    • Ka-Kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Fluorinated aromatic polyenes
    • Patent number 4,375,563
    • Issue date Mar 1, 1983
    • Hoffmann-La Roche Inc.
    • Ka-Kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Unsaturated eicosanoic acids
    • Patent number 4,345,084
    • Issue date Aug 17, 1982
    • Hoffmann-La Roche Inc.
    • Ka-Kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Fluorinated aromatic polyenes
    • Patent number 4,338,253
    • Issue date Jul 6, 1982
    • Hoffmann-La Roche Inc.
    • Ka-Kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Fluorinated polyenes
    • Patent number 4,335,248
    • Issue date Jun 15, 1982
    • Hoffmann-La Roche Inc.
    • Ka-Kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Fluorinated aromatic polyenes
    • Patent number 4,321,209
    • Issue date Mar 23, 1982
    • Hoffmann-La Roche Inc.
    • Ka-Kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Fluorinated polyenes
    • Patent number 4,299,995
    • Issue date Nov 10, 1981
    • Hoffmann-La Roche Inc.
    • Ka-Kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Fluorinated aromatic polyenes
    • Patent number 4,266,073
    • Issue date May 5, 1981
    • Hoffmann-La Roche Inc.
    • Ka-Kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Fluorinated polyenes
    • Patent number 4,231,944
    • Issue date Nov 4, 1980
    • Hoffmann-La Roche Inc.
    • Ka-Kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Fluorinated aromatic polyenes
    • Patent number 4,201,727
    • Issue date May 6, 1980
    • Hoffmann-La Roche Inc.
    • Ka-Kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Fluorinated polyenes
    • Patent number 4,171,318
    • Issue date Oct 16, 1979
    • Hoffmann-La Roche Inc.
    • Ka-Kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Fluorinated aromatic polyenes
    • Patent number 4,169,100
    • Issue date Sep 25, 1979
    • Hoffmann-La Roche Inc.
    • Ka-Kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Asymmetric synthesis
    • Patent number 4,160,865
    • Issue date Jul 10, 1979
    • Hoffmann-La Roche Inc.
    • Ka-Kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Optically active amine salts
    • Patent number 4,151,360
    • Issue date Apr 24, 1979
    • Hoffmann-La Roche Inc.
    • Ka-Kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Fluorinated aromatic polyenes
    • Patent number 4,137,246
    • Issue date Jan 30, 1979
    • Hoffmann-La Roche Inc.
    • Ka-Kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Tetramethyl chromanyl pentane derivatives
    • Patent number 4,110,346
    • Issue date Aug 29, 1978
    • Hoffmann-La Roche Inc.
    • Ka-Kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Optically active esters and amides
    • Patent number 4,102,909
    • Issue date Jul 25, 1978
    • Hoffmann-La Roche Inc.
    • Ka-Kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Claisen intermediates
    • Patent number 4,100,175
    • Issue date Jul 11, 1978
    • Hoffmann-La Roche Inc.
    • Ka-Kong Chan
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Tetramethyl-benzyloxy chromans
    • Patent number 4,097,495
    • Issue date Jun 27, 1978
    • Hoffmann-La Roche Inc.
    • Ka-Kong Chan
    • C07 - ORGANIC CHEMISTRY