Patents by Inventor Jack Pearl

Jack Pearl has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • N-propylnorapomorphine diesters
    Patent number: 4126616
    Abstract: N-Propylnorapomorphine dialkanoate, dibenzoate and dicyclopropanecarboxylate esters and acid-addition salts thereof, having anti-parkinson activity, are prepared by reaction of N-propylnorapomorphine with a respective alkanoyl, benzoyl or cyclopropanecarbonyl halide or corresponding acid anhydride in the presence of an acid acceptor.
    Type: Grant
    Filed: December 13, 1976
    Date of Patent: November 21, 1978
    Assignee: William B. Hinshaw
    Inventors: William Banks Hinshaw, Jack Pearl