Patents by Inventor Chang Seo Park

Chang Seo Park 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).

  • Microbiological method for preparing sphingolipids using a novel yeast pichia ciferrii DSCC 7-25
    Patent number: 5958742
    Abstract: The present invention relates to a microbiological process for preparing sphingolipids, especially, tetraacetylphytosphingosine(TAPS), using novel yeast cell Pichia ciferrii DSCC 7-25 under optimal fermentation conditions. Further, this invention concerns a novel yeast cell Pichia ciferrii DSCC 7-25 and it's isolation method from wild type of Pichia ciferrii strain.
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: September 28, 1999
    Assignee: Doosan Corporation
    Inventors: Chang Seo Park, Ji Hean Jeong, Sung Yong Hong, Woo Seok Choi