Patents by Inventor Ying-Wei Chien

Ying-Wei Chien 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).

  • Watch
    Patent number: D472479
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: April 1, 2003
    Assignee: Cherng Wei Precision Co., Ltd.
    Inventor: Ying-Wei Chien
  • Watch inner frame structure
    Patent number: D483284
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: December 9, 2003
    Assignee: Cherng Wei Precision Co., Ltd
    Inventor: Ying-Wei Chien