Patents by Inventor Ching-Lian Chen

Ching-Lian 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).

  • Method for Recovering Gold, Silver, Copper and Iron from Plasma-Caused Slag Containing Valuable Metals
    Publication number: 20100314242
    Abstract: There is disclosed an environmentally friendly method for recovering gold, silver, copper and iron from valuable metal-contained plasma-molten slag. At first, plasma is used to burn the used printed circuit boards, thus producing the slag. Then, the slag is grinded. Then, leaching, crystallization, precipitation, replacement and electric winning are conducted to recover gold, silver, copper and iron.
    Type: Application
    Filed: November 20, 2009
    Publication date: December 16, 2010
    Applicant: ATOMIC ENERGY COUNCIL-INSTITUTE OF NUCLEAR ENERGY RESEARCH
    Inventors: Wen-Cheng Lee, Ching-Lian Chen, Ching-Hwa Lee, Kuan-Ting Liu, Shao-Wen Wu, Chen-Yu Yen