Patents by Inventor Hsu Chu-Hwa

Hsu Chu-Hwa 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).

  • Ladle-ball racket
    Patent number: 4717155
    Abstract: A ladle-ball racket with a receiving ladle and a serving ladle, a passage permitting rolling of a ball between the receiving ladle and the serving ladle, used to receive the ball with the receiving ladle, serving the ball with the serving ladle after the ball received by the receiving ladle has reached the serving ladle through the ball passage.
    Type: Grant
    Filed: July 28, 1986
    Date of Patent: January 5, 1988
    Inventor: Hsu Chu-Hwa