Patents by Inventor Chun-Pa Chen

Chun-Pa 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).

  • Construction for a water hammer type pump
    Patent number: 4073604
    Abstract: A high efficiency water hammer type pump and more particularly, an improved construction for such a pump including a construction whereby water expelled from a waste valve is returned to the supply line of the pump.
    Type: Grant
    Filed: August 19, 1976
    Date of Patent: February 14, 1978
    Inventor: Chun-Pa Chen