Patents by Inventor Sylvan Duchesne

Sylvan Duchesne 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).

  • Toilet brush set
    Patent number: D464515
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: October 22, 2002
    Inventors: Robert Katz, Sylvan Duchesne