Patents by Inventor Cheng-Wen Li

Cheng-Wen Li 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).

  • Ion exchange resin tower and detection method of lifetime of resin therein
    Patent number: 7713420
    Abstract: An ion exchange resin tower including a tank, a supply line, an output line, and a plurality of sampling tubes is provided. The supply line guides a liquid into the tank, such that an ion exchange occurs between the liquid and the ion exchange resin in the tank. The processed liquid is guided out of the tank via the output line. The sampling tubes are disposed on a sidewall of the tank to sample the liquid flowing through the resin.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: May 11, 2010
    Assignee: Au Optronics Corporation
    Inventors: Ching-Wei Chu, Cheng-Wen Li, Chien-Chang Yang, Chang-Lung Pan
  • ION EXCHANGE RESIN TOWER AND DETECTION METHOD OF LIFETIME OF RESIN THEREIN
    Publication number: 20090114586
    Abstract: An ion exchange resin tower including a tank, a supply line, an output line, and a plurality of sampling tubes is provided. The supply line guides a liquid into the tank, such that an ion exchange occurs between the liquid and the ion exchange resin in the tank. The processed liquid is guided out of the tank via the output line. The sampling tubes are disposed on a sidewall of the tank to sample the liquid flowing through the resin.
    Type: Application
    Filed: February 5, 2008
    Publication date: May 7, 2009
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Ching-Wei Chu, Cheng-Wen Li, Chien-Chang Yang, Chang-Lung Pan