Patents by Inventor Tsai Chong Tung

Tsai Chong Tung 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).

  • Structure of a water bottle-straw assembly
    Patent number: 6196413
    Abstract: A water bottle-straw assembly comprising a screw-threaded cap base including a lift-lower cap attached at one side thereof and a through hole in which a suction base is inserted. The suction base has a protruding suction end having a valve and a flange providing an air guiding groove. A straw is inserted into the suction base and a flexible tube is telescopically connected to the lower end of the straw to allow use with containers of varying sizes.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: March 6, 2001
    Inventor: Tsai Chong Tung