Patents by Inventor Sonya S. Hewitt

Sonya S. Hewitt 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).

  • Patent number: D328431
    Type: Grant
    Filed: November 28, 1989
    Date of Patent: August 4, 1992
    Assignee: The Procter & Gamble Company
    Inventors: John E. Skidmore, Sonya S. Hewitt, Louis Y. Gutting