Patents by Inventor An-Gen Chan

An-Gen Chan 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).

  • Bottle opener
    Patent number: D310158
    Type: Grant
    Filed: September 6, 1988
    Date of Patent: August 28, 1990
    Inventor: An-Gen Chan