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Charles Portal

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  • Potomac, MD, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Purification of L-phenylalanine
    • Patent number 4,584,399
    • Issue date Apr 22, 1986
    • W. R. Grace & Co.
    • Charles Portal
    • C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...