Patents by Inventor Wolf-Dietrich Sprung

Wolf-Dietrich Sprung 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).

  • DL- DI- or tri-hydroxyphenylglycine alkyl esters for the treatment of inflammatory and allergic conditions
    Patent number: 5834511
    Abstract: The invention relates to DL-hydroxyphenylamino acid esters of formula ##STR1## wherein n is 3 to 12 andm is 2 or 3.The compounds are useful as therapeutic agents having antiinflammatory, analgesic, antiallergic and antiasthmatic properties, and also as cosmetic compositions.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: November 10, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Elisabeth Schulz, Manfred Kobow, Tankred Schewe, Wolf-Dietrich Sprung