Patents by Inventor Yoon Sang Cho-Chung

Yoon Sang Cho-Chung 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).

  • 8-CI cAMP as anti-cancer drug
    Patent number: 5902794
    Abstract: Site 1- and site 2-selective derivatives of cAMP have been found to inhibit the of a variety of cancer and leukemic cells. The compounds have been found to have a synergistic effect in cancer and leukemic cell growth inhibition when a site 1-selective compounds is used in combination with a site 2-selective compound.
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: May 11, 1999
    Assignee: The United States of America as represented by the Secretary of the Department of Health and Human Services
    Inventor: Yoon Sang Cho-Chung
  • Cyclic amp analogues, individually and in pairs, to inhibit neoplastic cell growth
    Patent number: 5843916
    Abstract: A method of inhibiting the proliferation of cells, particularly cancerous cells, by contacting the cells with a phosphorothioate derivative of a cAMP modified at either or both the C-6 and C-8 positions of the adenine moiety, and pharmaceutical compositions therefor.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: December 1, 1998
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: Yoon Sang Cho-Chung, Bernd Jastorff, Hans-Gottfried Genieser
  • 8-chloro camp and related camp compounds as antineoplastic agents
    Patent number: 5792752
    Abstract: Site 1- and site 2-selective derivatives of cAMP have been found to inhibit the growth of a variety of cancer and leukemic cells. The compounds have been found to have a synergistic effect in cancer and leukemic cell growth inhibition when a site 1-selective compound is used in combination with a site 2-selective compound.
    Type: Grant
    Filed: October 27, 1994
    Date of Patent: August 11, 1998
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: Yoon Sang Cho-Chung, Roland K. Robins, deceased
  • Treatment of malignant tumors with 8-chloroadenosine 3',5'-cyclic monophasphate
    Patent number: 5763419
    Abstract: The compound 8-chloroadenosine 3',5'-cyclic phosphate and its pharmaceutically acceptable salts are used to treat malignant tumors in afflicted hosts.
    Type: Grant
    Filed: May 10, 1995
    Date of Patent: June 9, 1998
    Assignee: ICN Pharmaceuticals
    Inventors: Roland K. Robins, deceased, Yoon Sang Cho-Chung