Patents by Inventor Tim W. Chen

Tim W. 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).

  • End clip for an exercise band
    Patent number: D373302
    Type: Grant
    Filed: July 21, 1995
    Date of Patent: September 3, 1996
    Assignee: Keys Fitness Products, Inc.
    Inventor: Tim W. Chen
  • Abdominal exercise apparatus
    Patent number: D379835
    Type: Grant
    Filed: October 10, 1995
    Date of Patent: June 10, 1997
    Assignee: Keys Fitness Products, Inc.
    Inventor: Tim W. Chen