Patents by Inventor Leonard Wiliamson

Leonard Wiliamson 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).

  • Dry cleaning fluid with curable amine functional silicone for fabric wrinkle reduction
    Patent number: 4911853
    Abstract: This invention relates to dry cleaning fluid compositions comprising curable amine functional silicones for wrinkle reduction and shape retention.
    Type: Grant
    Filed: December 21, 1988
    Date of Patent: March 27, 1990
    Assignee: The Procter & Gamble Company
    Inventors: Timothy W. Coffindaffer, Toan Trinh, Leonard Wiliamson