Patents by Inventor Chung-Jang Chang

Chung-Jang Chang 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 transferring amino acid into ketone acid(ester)
    Publication number: 20030212293
    Abstract: A method for transferring amino acid into ketone acid (ester) may obtain ketone acid (ester) at low cost. The method uses sodium hypochlorous acid as oxidizing agent and proceeds oxidation reaction with amino acid or its derivatives so as to obtain ketone acid and its derivatives. The sodium hypochlorous acid is easily to get with low cost and the conditions of the reaction are mild so that the method meets the needs of the industry.
    Type: Application
    Filed: May 10, 2002
    Publication date: November 13, 2003
    Inventor: Chung-Jang Chang