Patents by Inventor Richard J. Washkuhn

Richard J. Washkuhn 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).

  • Foam rubber insoles containing Ottacide-P
    Patent number: 4533351
    Abstract: The impregnation of a foam rubber, or similar polymeric material, insole with an effective antibacterial and antifungal agent along with a deodorant provides a simple, clean source of active ingredients for curative and prophylactic treatment of infections of the feet and reduces odors during the course of the treatment. The agent of choice in such a product must be stable to the conditions of use and be sufficiently non-volatile to be retained in the insole over a period of days or weeks.
    Type: Grant
    Filed: April 26, 1982
    Date of Patent: August 6, 1985
    Assignee: Pennwalt Corporation
    Inventor: Richard J. Washkuhn