Patents Represented by Attorney Leon Chasan

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  • Substituted cinnamal dialkyl malonates in sunscreening, skin care compositions
    Patent number: 4613499
    Abstract: Compositions containing an organic sunscreen and particular substituted cinnamal dialkyl malonate adjuvants therefor are very effective in providing broad spectrum sunscreen protection and skin care.
    Type: Grant
    Filed: June 21, 1985
    Date of Patent: September 23, 1986
    Assignee: Van Dyk & Company Inc.
    Inventor: Donald E. Conner