Patents by Inventor Lao-Chen Chen

Lao-Chen Chen 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).

  • Battery
    Patent number: D412153
    Type: Grant
    Filed: September 21, 1998
    Date of Patent: July 20, 1999
    Inventor: Lao-Chen Chen
  • Battery
    Patent number: D432078
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: October 17, 2000
    Inventor: Lao-Chen Chen