Patents Represented by Attorney Bernard S. Leun

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  • Compositions and methods for using 13-cis vitamin A acid compounds
    Patent number: 4464394
    Abstract: Methods for the prophylaxis of certain premalignant conditions and epithelial carcinomas comprising systemically administrating 13-cis vitamin A acid and a suitable pharmaceutical carrier material are described and compositions containing 13-cis Vitamin A acid suitable for systemic administration are disclosed.
    Type: Grant
    Filed: July 15, 1981
    Date of Patent: August 7, 1984
    Assignee: Hoffmann LaRoche Inc.
    Inventor: Werner Bollag