Patents by Inventor Cheol-Kyeung Kim

Cheol-Kyeung 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).

  • PROCESS FOR THE PREPARATION OF 1,2,3,9-TETRAHYDRO-9-METHYL-3-{(2-METHYL-1H-IMIDAZOL-1-YL)METHYL}-4H-CARBAZOL-4-ONE
    Publication number: 20020061919
    Abstract: Pure 1,2,3,9-tetrahydro-9-methyl-3-[(2-methyl-1H-imidazol-1-yl)methyl]-4H-carbazol-4-one or a pharmaceutically acceptable salt thereof is prepared in a high yield by a simple process which reacts 1,2,3,9-tetrahydro-9-methyl-4H-carbazol-4-one with a 2-methylimidazole derivative in an organic solvent or in a mixture of an organic solvent and water in the presence of a halosilane compound.
    Type: Application
    Filed: November 20, 2001
    Publication date: May 23, 2002
    Inventors: Kwang-Ok Lee, Hee-Seock Kim, Young-Jin Ham, Maeng-Sup Kim, Han-Kyeng Kim, Cheol-Kyeung Kim, Kum-Sin Jung, Hoe-Chul Lee, Ki-Eun Kim, Gwan-Sun Lee
  • Process for the preparation of 1,2,3,9-tetrahydro-9-methyl-3-{(2-methyl-1H-imidazol-1-yl)methyl}-4H-carbazol-4-one
    Patent number: 6388091
    Abstract: Pure -1,2,3,9-tetrahydro-9-methyl-3-[(2-methyl-1H-imidazol-1-yl)methyl]-4H-carbazol-4-one or a pharmaceutically acceptable salt thereof is prepared in a high yield by a simple process which reacts 1,2,3,9-tetrahydro-9-methyl-4H-carbazol-4-one with a 2-methylimidazole derivative in an organic solvent or in a mixture of an organic solvent and water in the presence of a halosilane compound.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: May 14, 2002
    Assignee: Hanmi Pharm. Co., Ltd.
    Inventors: Kwang-Ok Lee, Hee-Seock Kim, Young-Jin Ham, Maeng-Sup Kim, Han-Kyeng Kim, Cheol-Kyeung Kim, Kum-Sin Jung, Hoe-Chul Lee, Ki-Eun Kim, Gwan-Sun Lee