Patents by Inventor Hyung C. Kim

Hyung C. Kim 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).

  • Carbamate compounds containing thiocarbamoyl group and process for preparing the same
    Patent number: 5627300
    Abstract: There are disclosed 3-thiocarbamoyl-2-phenyl-1,3-propandiol carbamate racemate, represented by the following structural formula I: ##STR1## and its (R)- and (S)- optical isomers and intermediates thereof, which are very effective for prophylaxis and treatment of central nervous system disorders including epilepsy and apoplexy. 3-Thiocarbamoyl-2-phenyl-1,3-propandiol carbamate racemate and its (S)- and (R)- optical isomers are prepared from 2-phenyl-1,3-propandiol monothiocarbamate, (S)-2-phenyl-1,3-propandiol monothiocarbamate, and (S)-2-phenyl-1,3-propandiol monocarbamate, respectively.
    Type: Grant
    Filed: January 3, 1996
    Date of Patent: May 6, 1997
    Assignee: Yukong Limited
    Inventors: Yong M. Choi, Dong I. Han, Hyung C. Kim
  • Toothbrush device
    Patent number: 5315730
    Abstract: A toothbrush device having a bent handle and a longitudinal brush head about the bent handle for perfectly cleaning the tooth without causing any inconvenience to the lips and the mouth.
    Type: Grant
    Filed: September 9, 1991
    Date of Patent: May 31, 1994
    Inventors: Il Pyung Kim, Hyung C. Kim