Patents by Inventor A-Chien Yeh

A-Chien Yeh 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: 5651636
    Abstract: A traffic warning device comprises a base, and a support frame set. The base is provided therein with a power source receiving space. The support frame set comprises two first support frames and one second support frame. The first and the second support frames are provided therein respectively with a plurality of luminous diodes, circuits, magnets and conducting pieces. The magnets and the conducting pieces of the first and the second support frames are corresponding in location to one another.
    Type: Grant
    Filed: January 3, 1996
    Date of Patent: July 29, 1997
    Inventor: A-Chien Yeh
  • Patent number: 5444620
    Abstract: An apparatus for indicating driving status of a vehicle includes a first light with a first color, a second light with second color, and a third light with a third color. The first light is turned on to emit the first color light when a driver of the vehicle is stepping an accelerator pedal of the vehicle. The second light is turned on to emit the second color light when the driver of the vehicle is stepping a brake pedal of the vehicle. The third light is turned on to emit the third color light when the driver is neither stepping the accelerator nor stepping the brake pedal.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: August 22, 1995
    Inventor: A-Chien Yeh