Patents by Inventor Chang Ho Ahn

Chang Ho Ahn 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).

  • Publication number: 20140275129
    Abstract: Tetrahydroisoquinolin-2-yl-(quinazolin-4-yl)methanone derivatives represented by formula (I), pharmacologically acceptable salts thereof, and compositions containing such compounds are described. Methods for treating hyperproliferative disorders by administering the compounds are also described. 1,2,3,4-tetrahydroisoquinoline derivatives for making tetrahydroisoquinolin-2-yl-(quinazolin-4-yl)methanone compounds are also described.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: Rexahn Pharmaceuticals, Inc.
    Inventors: Young Bok Lee, Jae Min Kim, Deog Joong Kim, Chang-Ho Ahn
  • Patent number: 8598173
    Abstract: The present invention relates to novel quioxaline-piperazine compounds, 1-[(6,7-substituted alkoxyquinoxalinyl)aminocarbonyl]-4-(hetero)arylpiperazine derivatives of formula (1): and their pharmaceutically acceptable salts, a process for their preparation thereof, and compositions containing such compounds. Therapeutic methods for the treatment of hyperproliferative disorders, including cancers, by administering quioxalin-piperazine compounds are also included.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: December 3, 2013
    Assignees: Korea Research Institute of Chemical Technology, Rexahn Pharmaceuticals, Inc.
    Inventors: Young-Dae Gong, Moon-Kook Jeon, Dong-Su Kim, Jae Y. Kong, Gun-Do Kim, Chang Ho Ahn, Young Bok Lee
  • Publication number: 20130315937
    Abstract: Described is a lipid nanoparticle composition that includes a macromolecule conjugated to a polymer and a targeting agent. The composition can include a therapeutic agent. The therapeutic agent can be an antisense oligonucleotide (ASO). Exemplary ASOs are targeted to a portion of a nucleic acid encoding Akt-1, and which modulates the expression of Akt-1; or targeted to a portion of a nucleic acid encoding HIF-1, and which modulates the expression of HIF-1. Also described is a lipid nanoparticle composition that includes a macromolecule conjugated to a polymer and a therapeutic agent that is an ASO such as an ASO targeted to a portion of a nucleic acid encoding Akt-1, and which modulates the expression of Akt-1 or an ASO targeted to a portion of a nucleic acid encoding HIF-1, and which modulates the expression of HIF-1. Pharmaceutical formulations, methods of making the lipid nanoparticles, and methods of using the lipid nanoparticles, for example for treating cancers, are also disclosed.
    Type: Application
    Filed: May 23, 2013
    Publication date: November 28, 2013
    Applicant: The Ohio State University
    Inventors: Robert J. Lee, Young Bok Lee, Deog Joong Kim, Chang Ho Ahn
  • Patent number: 8404698
    Abstract: Quinazoline derivatives represented by the general formula pharmacologically acceptable salts thereof, and compositions containing such compounds are described. Methods for using the compounds for treatment of hyperproliferative disorders are also disclosed.
    Type: Grant
    Filed: June 16, 2008
    Date of Patent: March 26, 2013
    Assignee: Rexahn Pharmaceuticals, Inc.
    Inventors: Young Bok Lee, Chang Ho Ahn
  • Patent number: 8314123
    Abstract: The present invention relates to 5, 6, or 7-substituted-3-(hetero)arylisoquinolinamine derivatives represented by general formula D, their pharmacologically acceptable salts thereof, and compositions containing such compounds. Methods for treating hyperproliferative disorders by administering the compounds are also included.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: November 20, 2012
    Assignee: Rexahn Pharmaceuticals, Inc.
    Inventors: Young Bok Lee, Chang Ho Ahn, Won-Jea Cho
  • Patent number: 8314100
    Abstract: The present invention related to a novel urea derivative for formula (I): which is useful as an anti-cancer agent, its pharmaceutically acceptable acid addition salt or stereoisomer, and to a process for preparing the urea derivative and an anti-cancer composition comprising the same as an active ingredient.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: November 20, 2012
    Assignees: Rexahn Pharmaceuticals, Inc., Korea Research Institute of Chemical Technology
    Inventors: Young-Dae Gong, Moon-Kook Jeon, Dong-Su Kim, Jae Yang Kong, Gun-Do Kim, Chang-Ho Ahn, Young Bok Lee
  • Publication number: 20080318963
    Abstract: The present invention relates to novel quinoxaline-piperazine compounds, 1-[(6,7-substituted alkoxyquinoxalinyl)aminocarbonyl]-4-(hetero)arylpiperazine derivatives and their pharmaceutically acceptable salts, a process for their preparation thereof, and compositions containing such compounds. Therapeutic methods for the treatment of hyperproliferative disorders, including cancers, by administering quinoxalin-piperazine compounds are also included.
    Type: Application
    Filed: October 18, 2005
    Publication date: December 25, 2008
    Applicants: REXAHN PHARMACEUTICALS, INC., KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Young-Dae Gong, Moon-Kook Jeon, Dong-Su Kim, Jae Yang Kong, Gun-Do Kim, Chang-Ho Ahn, Young Bok Lee
  • Patent number: 7405214
    Abstract: The present invention relates to nucleoside derivatives represented by general formulas I and II, their synthetic methods and their pharmacologically acceptable salts thereof, and compositions containing such compounds. Methods for treating hyperproliferative disorders by administering the compounds are also included.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: July 29, 2008
    Assignee: Rexahn Corporation
    Inventors: Young Bok Lee, Chang Ho Ahn, Won Jun Choi, Lak Shin Jeong, Sang Kook Lee
  • Patent number: 7205283
    Abstract: New antisense oligonucleotide compounds, RX-0047 and RX-0149, inhibit expression of HIF-1 and also induce cytotoxicity in several cancer cell lines.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: April 17, 2007
    Assignee: Rexahn Corporation
    Inventors: Heejeong Yoon, Lingjun Mao, Young Bok Lee, Chang-Ho Ahn, Xiaoming Jiang
  • Patent number: 7122527
    Abstract: New antisense oligonucleotide compounds inhibit expression of Akt-1 and also induce cytotoxicity in several cancer cell lines.
    Type: Grant
    Filed: August 13, 2003
    Date of Patent: October 17, 2006
    Assignee: Rexahn Corporation
    Inventors: Heejeong Yoon, Lingjun Mao, Young Bok Lee, Chang Ho Ahn
  • Publication number: 20040265999
    Abstract: New antisense oligonucleotide compounds inhibit expression of Akt-1 and also induce cytotoxicity in several cancer cell lines.
    Type: Application
    Filed: August 13, 2003
    Publication date: December 30, 2004
    Inventors: Heejeong Yoon, Lingjun Mao, Young Bok Lee, Chang Ho Ahn
  • Publication number: 20040152655
    Abstract: New antisense oligonucleotide compounds, RX-0047 and RX-0149, inhibit expression of HIF-1 and also induce cytotoxicity in several cancer cell lines.
    Type: Application
    Filed: January 28, 2004
    Publication date: August 5, 2004
    Inventors: Heejeong Yoon, Lingjun Mao, Young Bok Lee, Chang-Ho Ahn, Xiaoming Jiang