Patents by Inventor Pan Sup Chang

Pan Sup 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).

  • Water soluble polymer-tacrolimus conjugated compounds and process for preparing the same
    Patent number: 5922729
    Abstract: The present invention relates to a tacrolimus conjugated compound represented by formula (I): ##STR1## in which R.sub.1 and R.sub.2 independently of one another represent hydrogen or a group of formula --CO--CH.sub.2 --X--(CH.sub.2 CH.sub.2 --O)n--CH.sub.3 wherein n denotes an integer of 10 to 460, andX represents O or S,provided that both R.sub.1 and R.sub.2 cannot be hydrogen;to a process for preparing the same and to its use as an immunosuppressive and antiinflammatory agent.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: July 13, 1999
    Assignee: Kuhnil Pharmaceutical Co., Ltd.
    Inventors: Pan Sup Chang, Hoon Cho