Patents by Inventor Chien S. Chen

Chien S. 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).

  • Camera tripod head
    Patent number: 5397086
    Abstract: A tripod head comprising (a) a plate connecting with a camera, (b) a camera platform for receiving, (c) two joints linking said camera platform to a central post of a tripod, one of said joints enabling said camera platform to rotate about an axis perpendicular to an axis of the central post while the remaining of said joints enabling said camera platform to rotate about the axis of the central post and (d) a handle for rotating said camera platform, comprising a coupler connecting with said camera platform and a grip pivotably connecting with said coupler.
    Type: Grant
    Filed: December 2, 1992
    Date of Patent: March 14, 1995
    Inventor: Chien S. Chen
  • Tripod head
    Patent number: D349718
    Type: Grant
    Filed: November 16, 1992
    Date of Patent: August 16, 1994
    Inventor: Chien S. Chen