Patents by Inventor Mao-sheng Chuang

Mao-sheng Chuang 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).

  • Method and apparatus for eliminating trapped air from a liquid flow
    Patent number: 5792237
    Abstract: A method and apparatus for eliminating trapped air from a liquid flow by using a buffer tank and an electrical control box such that substantially all the trapped air are accumulated in the buffer tank and further, when the tank is optionally equipped with a sensor system, the liquid flow can be shut-off when the liquid level in the buffer tank drops below a threshold level to prevent the trapped air from accidentally flowing into a process machine.
    Type: Grant
    Filed: December 13, 1996
    Date of Patent: August 11, 1998
    Assignee: Taiwan Semiconductor Manufacturing Co Ltd
    Inventors: Cheng-chieh Hung, Ming-chien Wen, Mao-sheng Chuang