Patents by Inventor Chung-Shan Wei

Chung-Shan Wei 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).

  • Bluetooth earphone and adapter
    Patent number: D551216
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: September 18, 2007
    Assignee: He-And Technology Co., Ltd.
    Inventor: Chung-Shan Wei
  • Bluetooth earphone and adapter
    Patent number: D552087
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: October 2, 2007
    Assignee: He-And Technology Co., Ltd.
    Inventor: Chung-Shan Wei