Patents by Inventor Man-Chung Wong

Man-Chung Wong 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: 20130228758
    Abstract: A novel class of saturated or conjugated dendrimers containing at least one strong ?-donating group coordinated to cyclometalated tridentate gold(III) compounds having the chemical structure depicted by generic formula: wherein: (a) [Au] is a cyclometalated tridentate gold(III) group; (b) Unit A is a ?-donating chemical group; (c) Unit B is a central part of the dendrons comprising a branch point of component dendrimers; (d) Unit C is optional surface groups or dendrons of the dendrimers; (e) n=0 or 1.
    Type: Application
    Filed: February 27, 2013
    Publication date: September 5, 2013
    Inventors: Vivian Wing Wah Yam, Kobe Man Chung Tang, Maggie Mei Yee Chan, Keith Man Chung Wong
  • Patent number: 8415473
    Abstract: A class of luminescent gold(III) compounds containing a tridentate ligand with one strong ?-donating group having the chemical structure depicted by generic formula (I): wherein: (a) X is selected from nitrogen; (b) Y and Z selected from carbon; (c) A is cyclic structure derivative of pyridine group; (d) B and C are cyclic structure derivative of phenyl groups; (e) R1 is an optionally substituted carbon donor ligand attached to the gold atom; (f) n is zero, a positive integer or a negative integer.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: April 9, 2013
    Assignee: Versitech Limited
    Inventors: Vivian Wing-Wah Yam, Vonika Ka-Man Au, Mei-Yee Chan, Keith Man-Chung Wong, Hoi-Sing Kwok
  • Patent number: 8372977
    Abstract: Embodiments of the invention are directed to luminescent gold(III) compounds contains a bidentate ligand with at least one strong ?-donating group, a method of preparation of these compounds and the use of these compounds in organic light emitting devices. The gold(III) compounds have the chemical structure: wherein: X is a nitrogen atom; Y is selected from a carbon or a nitrogen atom; A-B is a substituted or unsubstituted cyclometalating ligand (for Y?C) or diimine ligand (for Y?N); where A and B are cyclic structure derivatives; R1 and R2 are optionally substituted carbon donor ligands attached to the gold atom, with the proviso that R1 and R2 are not —CH3, —CH2SiMe3, mesityl, pentafluorophenyl, —CH2C(O)R?, —CH(R)SO2CH(R)—, —C6H4N?NC6H5, and wherein R1 and R2 can optionally be combined into a bidentate ligand; and n is greater or equal to zero.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: February 12, 2013
    Assignee: The University of Hong Kong
    Inventors: Vivian Wing-Wah Yam, Vonika Ka-Man Au, Mei-Yee Chan, Keith Man-Chung Wong
  • Patent number: 8309304
    Abstract: The present invention provides a composition for detecting and/or characterizing a multiple-charged biomolecule comprising a charged d8 or d10 metal complex, wherein the metal complex electrostatically binds to the multiple-charged biomolecule to induce aggregation and self-assembly of the metal complex through metal-metal interactions, ? . . . ? interactions, or a combination of both interactions. The present invention further provides assay methods and kits for label-free optical detection and/or characterization of biomolecules carrying multiple charges, e.g., single-stranded nucleic acids, using a composition comprising a charged d8 or d10 metal complex.
    Type: Grant
    Filed: January 21, 2008
    Date of Patent: November 13, 2012
    Assignee: The University of Hong Kong
    Inventors: Vivian Wing-Wah Yam, Cong Yu, Kenneth Hoi-Yiu Chan, Keith Man-Chung Wong
  • Patent number: 8057989
    Abstract: The present invention provides a composition for detecting and/or characterizing a multiple-charged biomolecule comprising a charged d8 or d10 metal complex, wherein the metal complex electrostatically binds to the multiple-charged biomolecule to induce aggregation and self-assembly of the metal complex through metal . . . metal interactions, ? . . . ? interactions, or a combination of both interactions. The present invention further provides assay methods and kits for label-free optical detection and/or characterization of biomolecules carrying multiple charges, e.g., single-stranded nucleic acids, polyaspartate, polyglutamate, using a composition comprising a charged d8 or d10 metal complex.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: November 15, 2011
    Assignee: The University of Hong Kong
    Inventors: Vivian Wing-Wah Yam, Cong Yu, Kenneth Hoi-Yiu Chan, Keith Man-Chung Wong
  • Publication number: 20110012093
    Abstract: Embodiments of the invention are directed to luminescent gold(III) compounds contains a bidentate ligand with at least one strong ?-donating group, a method of preparation of these compounds and the use of these compounds in organic light emitting devices. The gold(III) compounds have the chemical structure: wherein: X is a nitrogen atom; Y is selected from a carbon or a nitrogen atom; A-B is a substituted or unsubstituted cyclometalating ligand (for Y?C) or diimine ligand (for Y?N); where A and B are cyclic structure derivatives; R1 and R2 are optionally substituted carbon donor ligands attached to the gold atom, with the proviso that R1 and R2 are not —CH3, —CH2SiMe3, mesityl, pentafluorophenyl, —CH2C(O)R?, —CH(R)SO2CH(R)—, —C6H4N?NC6H5, and wherein R1 and R2 can optionally be combined into a bidentate ligand; and n is greater or equal to zero.
    Type: Application
    Filed: June 24, 2010
    Publication date: January 20, 2011
    Inventors: Vivian Wing-Wah Yam, Vonika Ka-Man Au, Mei-Yee Chan, Keith Man-Chung Wong
  • Publication number: 20090278453
    Abstract: A class of luminescent gold(III) compounds containing a tridentate ligand with one strong ?-donating group having the chemical structure depicted by generic formula (I): wherein: (a) X is selected from nitrogen; (b) Y and Z selected from carbon; (c) A is cyclic structure derivative of pyridine group; (d) B and C are cyclic structure derivative of phenyl groups; (e) R1 is an optionally substituted carbon donor ligand attached to the gold atom; (f) n is zero, a positive integer or a negative integer.
    Type: Application
    Filed: June 30, 2009
    Publication date: November 12, 2009
    Inventors: Vivian Wing-Wah YAM, Vonika Ka-Man AU, Mei-Yee CHAN, Keith Man-Chung WONG
  • Patent number: 7572912
    Abstract: A class of luminescent gold(III) compounds with a tridentate ligand and at least one strong ?-donating group having the chemical structure represented by the general formula (I): wherein R1-R4 each independently represent the group containing hydrogen, halogen, alkynyl, substituted alkynyl, alkyl, substituted alkyl, aryl, substituted aryl, heteroaryl, substituted heteroaryl, alkoxyl, substituted alkoxyl, amino, substituted amino, cyano, nitro, alkylcarbonyl, alkoxycarbonyl, arylcarbonyl, aryloxycarbonyl, mono- or dialkylaminocarbonyl, alkylcarbonyloxy, arylcarbonyloxy, aryloxy, alkoxycarbonyl, aryloxycarbonyloxy group, and the like; X, Y and Z each independently represent a heteroatom or a carbon; represents an aromatic or heterocyclic 5- or 6-membered ring; ? and ? each independently represent a bridge for an aromatic or heterocyclic 5- or 6-membered ring or represent a break for non-cyclic moiety; C—X, C—Y and C—Z each independently represent a single bond or double bond; n represents a zero or an i
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: August 11, 2009
    Assignee: University of Hong Kong
    Inventors: Vivian Wing-Wah Yam, Man-Chung Wong, Hoi-Sing Kwok, Xiuling Zhu
  • Publication number: 20080153103
    Abstract: The present invention provides a composition for detecting and/or characterizing a multiple-charged biomolecule comprising a charged d8 or d10 metal complex, wherein the metal complex electrostatically binds to the multiple-charged biomolecule to induce aggregation and self-assembly of the metal complex through metal-metal interactions, ? . . . ? interactions, or a combination of both interactions. The present invention further provides assay methods and kits for label-free optical detection and/or characterization of biomolecules carrying multiple charges, e.g., single-stranded nucleic acids, using a composition comprising a charged d8 or d10 metal complex.
    Type: Application
    Filed: January 21, 2008
    Publication date: June 26, 2008
    Inventors: Vivian Wing-Wah Yam, Cong Yu, Kenneth Hoi-Yiu Chan, Keith Man-Chung Wong
  • Publication number: 20060091378
    Abstract: A class of luminescent gold(III) compounds with a tridentate ligand and at least one strong ?-donating group having the chemical structure represented by the general formula (I): wherein R1-R4 each independently represent the group containing hydrogen, halogen, alkynyl, substituted alkynyl, alkyl, substituted alkyl, aryl, substituted aryl, heteroaryl, substituted heteroaryl, alkoxyl, substituted alkoxyl, amino, substituted amino, cyano, nitro, alkylcarbonyl, alkoxycarbonyl, arylcarbonyl, aryloxycarbonyl, mono- or dialkylaminocarbonyl, alkylcarbonyloxy, arylcarbonyloxy, aryloxy, alkoxycarbonyl, aryloxycarbonyloxy group, and the like; X, Y and Z each independently represent a heteroatom or a carbon; represents an aromatic or heterocyclic 5- or 6-membered ring; ? and ? each independently represent a bridge for an aromatic or heterocyclic 5- or 6-membered ring or represent a break for non-cyclic moiety; C—X, C—Y and C-Z each independently represent a single bond or double bond; n represents a zero or an
    Type: Application
    Filed: October 29, 2004
    Publication date: May 4, 2006
    Inventors: Vivian Yam, Man-Chung Wong, Hoi-Sing Kwok, Xiuling Zhu