Patents by Inventor Choon-Hong Tan

Choon-Hong Tan 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).

  • COMPOUNDS HAVING ANTIMALARIAL ACTIVITY
    Publication number: 20220380317
    Abstract: The present invention lies in the technical field of drug development and malaria treatment and specifically relates to compounds having antimalarial activity as well as pharmaceutical compositions comprising them and methods of use thereof.
    Type: Application
    Filed: June 25, 2020
    Publication date: December 1, 2022
    Inventors: Wen Jun Donald TAY, Peter Rainer PREISER, Choon Hong TAN
  • Ion pair catalysis of tungstate and molybdate
    Patent number: 10710061
    Abstract: D The present invention relates to ion pair catalysts (I) comprising the cationic bisguanidinium ligand (A) and diperoxomolybdate anion (B). The present invention also relates to ion pair catalysts (III) comprising the cationic bisguanidinium ligand (C) and peroxotungstate anion (D). It further relates to the use of the said catalysts in the manufacture of enantiomerically enriched sulfoxides.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: July 14, 2020
    Assignee: Nanyang Technological University
    Inventors: Choon-Hong Tan, Xinyi Ye, Lili Zong
  • ION PAIR CATALYSIS OF TUNGSTATE AND MOLYBDATE
    Publication number: 20190105646
    Abstract: The present invention relates to ion pair catalysts (I) comprising the cationic bisguanidinium ligand (A) and diperoxomolybdate anion (B). The present invention also relates to ion pair catalysts (III) comprising the cationic bisguanidinium ligand (C) and peroxotungstate anion (D). It further relates to the use of the said catalysts in the manufacture of enantiomerically enriched sulfoxides.
    Type: Application
    Filed: March 22, 2017
    Publication date: April 11, 2019
    Inventors: Choon-Hong TAN, Xinyi YE, Lili ZONG
  • Morpholin-4-ium 4 methoxyphenyl (morpholino) phosphinodithioate (GYY4137) as a novel vasodilator agent
    Patent number: 8865684
    Abstract: The invention is directed to a method of administering hydrogen sulfide (H2S) slowly and sustainably to an individual in need thereof comprising administering an effective amount of a compound represented by the following structural formula: or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: October 21, 2014
    Assignee: National University of Singapore
    Inventors: Philip Keith Moore, Choon-Hong Tan, Ling Li, Yan Yi Guan
  • Phase transfer catalysts
    Patent number: 8692000
    Abstract: Compounds of formula (I): wherein R1 to R8, and X? are defined herein. Also disclosed are methods of making and using these compounds.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: April 8, 2014
    Assignee: National University of Singapore
    Inventors: Choon Hong Tan, Kuo Wei Huang, Ting Ma, Xiao Fu
  • MORPHOLIN-4-IUM 4 METHOXYPHENYL (MORPHOLINO) PHOSPHINODITHIOATE (GYY4137) AS A NOVEL VASODILATOR AGENT
    Publication number: 20130331360
    Abstract: The invention is directed to a method of administering hydrogen sulfide (H2S) slowly and sustainably to an individual in need thereof comprising administering an effective amount of a compound represented by the following structural formula: or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: August 15, 2013
    Publication date: December 12, 2013
    Applicant: National University of Singapore
    Inventors: Philip Keith Moore, Choon-Hong Tan, Ling Li, Yan Yi Guan
  • Morpholin-4-ium 4 methoxyphenyl (morpholino) phosphinodithioate (GYY4137) as a novel vasodilator agent
    Patent number: 8541396
    Abstract: The invention is directed to a method of administering hydrogen sulfide (H2S) slowly and sustainably to an individual in need thereof comprising administering an effective amount of a compound represented by the following structural formula: or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: September 24, 2013
    Assignee: National University of Singapore
    Inventors: Philip Keith Moore, Choon-Hong Tan, Ling Li, Yan Yi Guan
  • NOVEL PHASE TRANSFER CATALYSTS
    Publication number: 20130217889
    Abstract: Compounds of formula (I): wherein R1 to R8, and X? are defined herein. Also disclosed are methods of making and using these compounds.
    Type: Application
    Filed: October 27, 2011
    Publication date: August 22, 2013
    Applicant: National University of Singapore
    Inventors: Choon Hong Tan, Kuo Wei Huang, Ting Ma, Xiao Fu
  • MORPHOLIN-4-IUM 4 METHOXYPHENYL (MORPHOLINO) PHOSPHINODITHIOATE (GYY4137) AS A NOVEL VASODILATOR AGENT
    Publication number: 20100273743
    Abstract: The invention is directed to a method of administering hydrogen sulfide (H2S) slowly and sustainably to an individual in need thereof comprising administering an effective amount of a compound represented by the following structural formula: or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: April 24, 2009
    Publication date: October 28, 2010
    Applicant: National University of Singapore
    Inventors: Philip Keith Moore, Choon-Hong Tan, Ling Li, Yan Yi Guan