Patents by Inventor Yih Jong Chang

Yih Jong Chang 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).

  • Patent number: 6532843
    Abstract: A steering wheel covering includes a sheath fitting over the periphery of a motor vehicle, a plurality of detachable replaceable patches fitting respective recessed portions of the sheath, and a plurality of tie cords respectively inserted through wire holes of each patches to secure the patches and the sheath to the steering wheel.
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: March 18, 2003
    Inventor: Yih Jong Chang
  • Patent number: 5393298
    Abstract: A massage steering wheel cover including a rubber ring, a plurality of massage members secured on the rubber ring and having a recess and a convex portion at both sides of the recess, the convex portion being adapted to the rubber ring to form an air chamber therebetween, the recess being provided with a plurality of round-headed protuberances, the convex portion being formed with a plurality of protuberances and a plurality of perforations, a plurality of magnets fitted into a certain number of the protuberances of the massage member, and a plurality of leather members secured on the rubber ring.
    Type: Grant
    Filed: March 10, 1994
    Date of Patent: February 28, 1995
    Inventor: Yih-Jong Chang
  • Patent number: 5139014
    Abstract: This invention relates to a massager and in particular to a massage member having a semi-circular cross section and a plurality of solid and hollow round-headed protuberances on the surface, a plurality of magnets each fitted into one of the hollow round-headed protuberances of the massage member, a leather envelope formed with a plurality of holes adapted to receive the round-headed protuberances of the massage member, and two retainers each mounted at an end of the massage member.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: August 18, 1992
    Inventor: Yih-Jong Chang