Patents by Inventor Shyh-Tsung Chen

Shyh-Tsung 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).

  • Process for the recovery of metal from cyanide-containing liquid wastes
    Patent number: 5324439
    Abstract: The present invention is a process for oxidation of a liquid which contains cyanide and soluble metal ions, using an oxygen-containing gas. Art example of such a liquid is the liquid waste produced during metal treatment processes. The disclosed process not only eliminates the cyanide completely, but also converts the metal dissolved in the liquid into granular metal oxides which can be readily recovered.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: June 28, 1994
    Assignee: Industrial Technology Research Institute
    Inventors: Shyh-Tsung Chen, Kun-Chung Wu, Wen-Sen Chang