Patents by Inventor Ching-Fa Tsai

Ching-Fa Tsai 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).

  • Multifunctional exercise device
    Patent number: 6110082
    Abstract: An exercise device comprising two guide members each including an elongated guide track, two handles each including a body slidably mounted to the guide track of one of the two corresponding guide members, and multiple elastic ropes each having a first end secured to the guide track of one of the corresponding guide members, and the second end secured to the body of one of the corresponding handles to move therewith.
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: August 29, 2000
    Inventor: Ching-Fa Tsai