Patents by Inventor Chwan-Tsann Wang

Chwan-Tsann Wang 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).

  • Monitoring electroless plating baths
    Patent number: 5384153
    Abstract: Disclosed is a method of monitoring electroless plating solutions. The solutions are used to plate a light-transmitting medium. Measurements are made to determine the time it takes for light transmission through the medium to be reduced to a certain level. This measurement can be used to determine whether articles will be sufficiently plated by the solutions.
    Type: Grant
    Filed: March 10, 1993
    Date of Patent: January 24, 1995
    Assignee: AT&T Corp.
    Inventors: Alfred J. Grady, Jr., Sudarshan Lal, Mary J. Mitchell, Yutaka Okinaka, Craig G. Smith, Harvey S. Trop, Chwan-Tsann Wang