Patents by Inventor Lien-Chao Hslao

Lien-Chao Hslao 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).

  • Paintball gun anti-blocking device
    Patent number: 6928999
    Abstract: A paintball gun anti-blocking device includes a first, infra-red receiver and emitter disposed near the bottom of the inner wall of the gun tube to detect when the paintball enters the normal shooting position. A second infra-red receiver and emitter are positioned relative to the trigger as to detect if the trigger is pressed to the shooting position.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: August 16, 2005
    Inventors: Lien-Chao Hslao, Yue-Shiu Hung