Patents by Inventor Chongyu Cai

Chongyu Cai 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).

  • Transformer
    Patent number: D556684
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: December 4, 2007
    Assignee: TDC Power Products Co., Ltd.
    Inventor: Chongyu Cai
  • Transformer
    Patent number: D556685
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: December 4, 2007
    Assignee: TDC Power Products Co., Ltd.
    Inventor: Chongyu Cai