Patents by Inventor Ping T. Wang

Ping T. 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).

  • Microbial process for 9.alpha.-hydroxylation of steroids
    Patent number: 4397947
    Abstract: Valuable 9.alpha.-hydroxy steroids are prepared via microbial enzymatic oxidation (MEO) by conventional fermentation means, without the need for a .DELTA..sup.1 dehydrogenation inhibitor, utilizing novel microorganism Nocardia canicruria ATCC 31548. Also disclosed is a novel method using any .DELTA..sup.1 dehydrogenase producing organism and a novel bio-reactor technique means for preparing said steroids.
    Type: Grant
    Filed: June 12, 1981
    Date of Patent: August 9, 1983
    Assignee: G. D. Searle & Co.
    Inventors: William J. Marsheck, James Jiu, Ping T. Wang