Patents by Inventor Tze-Ann Chen

Tze-Ann 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).

  • Human-carrying vehicle and auxiliary device thereof
    Publication number: 20050275550
    Abstract: A human-transporting vehicle has a chamber, a gas collector, a detection circuit and a determination circuit for improving driving safety. The gas collector collects a gas sampling and the determination circuit determines whether a concentration of a certain composition in the gas sampling exceeds a predetermined value. If the determination result is positive, the determination circuit disables the vehicle so that the vehicle cannot start. An audio device and a display are utilized for providing the driver with information to know whether it is safe to drive the vehicle.
    Type: Application
    Filed: May 31, 2005
    Publication date: December 15, 2005
    Inventors: Ching-Sung Wang, Yiu-Tong Chu, Tze-Ann Chen, Ming-Chen Wu