Patents by Inventor Chan Hsing-Tsun

Chan Hsing-Tsun 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: D605790
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: December 8, 2009
    Assignee: Portland Design Works
    Inventor: Chan Hsing-Tsun