Patents by Inventor Richard E. Willins

Richard E. Willins 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).

  • Therapeutic composition
    Patent number: 4261982
    Abstract: Zinc compounds, especially zinc salts of carboxylic acids, react with erythromycin to provide zinc erythromycin. Topical compositions containing zincerythromycin are especially useful as a topical treatment for acne.
    Type: Grant
    Filed: October 25, 1978
    Date of Patent: April 14, 1981
    Assignee: The Procter & Gamble Company
    Inventors: Wilmer L. Luedders, Richard E. Willins