Patents Represented by Attorney R. Klostermann

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  • Benzene sulfonate quaternary ammonium salts of organic sunscreen carboxylic acids
    Patent number: 4680144
    Abstract: Compositions of benzene sulfonate quaternary ammonium salts of organic sunscreen carboxylic acids have substantially for human hair and protect it from the undesirable effects of sunlight.
    Type: Grant
    Filed: October 29, 1986
    Date of Patent: July 14, 1987
    Assignee: Mallinckrodt, Inc.
    Inventor: Donald E. Conner