Patents by Inventor Chun K. Hsien

Chun K. Hsien 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).

  • Exit door actuator
    Patent number: D331182
    Type: Grant
    Filed: May 14, 1990
    Date of Patent: November 24, 1992
    Assignee: Trans-Atlantic Company
    Inventor: Chun K. Hsien