Patents by Inventor Chau-Kong Hong

Chau-Kong Hong 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 stamp with self-provided ink filling mechanism
    Patent number: 4996921
    Abstract: An implement for imprinting mark, which includes a stamp holder for holding a stamp, an ink holder for containing ink and being fastening in the stamp holder. An ink hole is made on the division board portion of the ink holder for passing therethrough of ink from the ink holder. A pintle nozzle is fastening in the stamp with its top end disposed in the ink hole permitting the ink to fill the stamp with ink for imprinting when the stamp is brought forcibly against something to mark.
    Type: Grant
    Filed: February 6, 1990
    Date of Patent: March 5, 1991
    Inventor: Chau-Kong Hong