Patents by Inventor Cheng Tsz Piu

Cheng Tsz Piu 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).

  • Lacrosse head frame
    Patent number: D599865
    Type: Grant
    Filed: October 13, 2008
    Date of Patent: September 8, 2009
    Assignee: Franklin Sports, Inc.
    Inventors: Cheng Tsz Piu, Cheng Hung Cheung, Seth Hochberg