Patents by Inventor Cheng-Yeh Yang

Cheng-Yeh Yang 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).

  • VOIP access gateway
    Patent number: D464044
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: October 8, 2002
    Assignee: Industrial Technology Research Institute
    Inventors: Chia-Wen Wang, Yu-Lin Chao, Cheng-Yeh Yang