Patents by Inventor Cheng Lio

Cheng Lio 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).

  • Video telephone
    Patent number: D398302
    Type: Grant
    Filed: June 24, 1997
    Date of Patent: September 15, 1998
    Assignee: Profton Communications Technologies Inc.
    Inventor: Cheng Lio