Patents by Inventor Chien F. Chen

Chien F. 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).

  • Baseball chest protector
    Patent number: 4847913
    Abstract: A chest protector formed by a pair of chest protector bodies; each of the chest protector bodies being formed to include a one-piece, homogeneous, in situ molded foamed polymeric/copolymeric material; a zipper disposed along a vertical line of the chest protector for securing the chest protector bodies to each other, and straps for securing the chest protector bodies to each other across the back of a user.
    Type: Grant
    Filed: October 20, 1987
    Date of Patent: July 18, 1989
    Inventor: Chien F. Chen