Patents by Inventor Huey-Jyh Chen

Huey-Jyh 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).

  • Electrochemical impedance spectroscopy method for evaluating corrosion inhibitor performance
    Patent number: 5370776
    Abstract: A simple, expedient method for measuring the effectiveness of a corrosion inhibitor provided to a metallic surface by a surface layer, wherein the layer is formed by use of the corrosion inhibitor is a corrosive fluid. The method employs the measuring of a high frequency phase angle as an indicator of inhibitor effectiveness.
    Type: Grant
    Filed: October 20, 1993
    Date of Patent: December 6, 1994
    Assignee: Chevron Research and Technology Company
    Inventor: Huey-Jyh Chen