Patents by Inventor Joong K. Choi

Joong K. Choi 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).

  • Phenylacetamide derivatives and pharmaceutical compositions thereof
    Patent number: 5242944
    Abstract: The present invention provides novel phenylacetamide derivatives having the following formula ##STR1## wherein: X is a hydrogen, halogen, hydroxy, nitro, amino, R.sup.1, NR.sup.1 R.sup.2, NHR.sup.1 or OR.sup.1 wherein R.sup.1 and R.sup.2 are an optionally substituted C.sub.1-8 alkyl, cycloalkyl or benzyl group, respectively; Y, which may be the same or different when p is greater than 1, is a hydrogen, halogen, methylenedioxy, hydroxy, trifluoromethyl, R.sup.3 or OR.sup.3 wherein R.sup.3 is an optionally substituted C.sub.1-8 alkyl or benzyl group;n is an integer from 1 to 6; andp is an integer from 1 to 5; and pharmaceutically acceptable salts thereof which have powerful analgesic and anti-inflammatory activities.The invention also provides processes for preparing these compounds and pharmaceutical compositions containing them as an active ingredient.
    Type: Grant
    Filed: April 13, 1992
    Date of Patent: September 7, 1993
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: No S. Park, Deok C. Ha, Joong K. Choi, Hyun S. Kim, Mi S. Hong, Hee J. Lim, Kwang S. Lee