Patents by Inventor John A. Lao

John A. Lao 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).

  • Ping pong rebound board
    Patent number: 5935024
    Abstract: A ping pong bounce back device is provided including a ping pong table and a back board mounted along one of the short parallel edges thereof. The back board has a front face with a plurality of undulations formed therein.
    Type: Grant
    Filed: January 22, 1998
    Date of Patent: August 10, 1999
    Inventor: John A. Lao