Patents by Inventor Mong-Jong Tien

Mong-Jong Tien 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 producing angiotensin converting enzyme inhibitor
    Patent number: 6541635
    Abstract: The present invention discloses a method for producing angiotensin converting enzyme inhibitor of the following formula (I) and pharmaceutically acceptable salts thereof, in which a compound of the following formula (II), wherein R and R1 are defined as in the specification, is subjected to a de-protective reaction of silyl group in non-aqueous medium. This reaction is easily carried out only in the non-aqueous medium, so that by-product is minimized and the yield is high.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: April 1, 2003
    Assignee: Everlight USA, Inc.
    Inventors: Mong-Jong Tien, Yu-Liang Liu