Patents by Inventor C. Jean Hofmann-Kay

C. Jean Hofmann-Kay 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).

  • Gutter cleaning system
    Patent number: D622016
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: August 17, 2010
    Inventors: C. Jean Hofmann-Kay, Robert I. Kay