Patents by Inventor Chi-Ming Che

Chi-Ming Che 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: 20130274473
    Abstract: The current invention relates to novel platinum(II) based organometallic materials. These materials show high emission quantum efficiencies and low self-quenching constant. Also provided are high efficiency, green to orange emitting organic light-emitting diode (OLED) that are fabricated using platinum(II) based organometallic materials as the light-emitting material. The organometallic materials of the invention are soluble in common solvents; therefore, solution process methods such as spin coating and printing can be used for device fabrication. The devices fabricated from these materials show low efficiency roll-off.
    Type: Application
    Filed: April 11, 2013
    Publication date: October 17, 2013
    Applicant: The University of Hong Kong
    Inventors: Chi Ming CHE, Chi Fai KUI, Chi Chung KWOK
  • Patent number: 8530659
    Abstract: The present disclosure is related to a pharmaceutical composition for treatment of cancer comprising a cyclometalated N-heterocyclic carbene complex. The cyclometalated N-heterocyclic carbene complex contains a gold(III) or a platinum(II) atom. The pharmaceutical composition possesses anti-cancer activity such as the induction of cell death, inhibition of cellular proliferation, inhibition of topoisomerase and/or poisoning of topoisomerase.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: September 10, 2013
    Assignee: The University of Hong Kong
    Inventors: Chi Ming Che, Raymond Wai-Yin Sun, Lok Fung Chow, Jing Yan
  • Publication number: 20130150580
    Abstract: Subject matter disclosed herein relates to a series of palladium based materials, their preparation method and their applications in an organic light-emitting diode (OLED).
    Type: Application
    Filed: November 20, 2012
    Publication date: June 13, 2013
    Applicant: THE UNIVERSITY OF HONG KONG
    Inventors: Chi Ming Che, Chi Fai Kui, Pui Keong Chow
  • Patent number: 8383673
    Abstract: The invention relates to nitridoosmium complexes and methods of using these compounds as treatments for cancer.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: February 26, 2013
    Assignees: City University of Hong Kong, Versitech Limited
    Inventors: Tai Chu Lau, Yun Wah Lam, Wai Lun Man, Wen Xiu Ni, Chi-Ming Che
  • Publication number: 20120309979
    Abstract: The subject invention is directed to tetradentate bis-(NHC carbenes) alkylene ligand Pt(II) complexes, tetradentate bis-(NHC carbenes) alkylene ligands, and its ligand precursors, for preparation of the Pt(II) complexes. The Pt(II) complexes show a deep blue emission with an improved quantum efficiency and can be used for fabrication of OLEDs with an electroluminescence layer that comprise the bis-(NHC carbenes) alkylene ligand Pt(II) complexes.
    Type: Application
    Filed: May 29, 2012
    Publication date: December 6, 2012
    Applicant: The University Of Hong Kong
    Inventors: CHI MING CHE, Kai Li
  • Publication number: 20120018711
    Abstract: Described are novel platinum (II) containing organometallic materials. These materials show green to orange emissions with high emission quantum efficiencies. Using the materials as emitting materials; pure green emitting organic light-emitting diodes can be fabricated. Since the novel platinum (II) containing organometallic materials are soluble in common solvents, solution process methods such as spin coating and printing can be used for device fabrication.
    Type: Application
    Filed: July 13, 2011
    Publication date: January 26, 2012
    Applicant: THE UNIVERSITY OF HONG KONG
    Inventors: Chi Ming Che, Chi Fai Kui, Chi Chung Kwok
  • Publication number: 20110282065
    Abstract: Solid-supported gold nanoparticles for use as a catalyst for the synthesis of quinolines from anilines and aldehydes using oxygen as an oxidant are provided. Also provided are a method for the preparation of SiO2-supported gold nanoparticles by in situ deposition of gold nanoparticles to silica gel and a method for synthesizing quinolines from anilines and aldehydes using oxygen as an oxidant.
    Type: Application
    Filed: May 13, 2011
    Publication date: November 17, 2011
    Applicant: THE UNIVERSITY OF HONG KONG
    Inventors: Chi-Ming Che, Man-Ho So
  • Publication number: 20110269730
    Abstract: The present invention relates to metal thiourea complexes comprising N-substituted thiourea ligands and sulfur-coordinated metal ions, and methods for using the metal thiourea complexes for delivering otherwise unstable or impermeable metal ions to mammalian cells, for inhibiting cancer cell growth and inflammation, and for inhibiting the activities of associated drug targets under in vitro and in vivo conditions. The metal complexes of N-substituted thiourea are defined by the following formula (Ia or Ib) wherein R1 can be H, alkyl, alkenyl, alkynyl, aryl or heterocyclic groups; R2 can be H, alkyl, alkenyl, alkynyl or aryl groups; n=1 to 4; X? is a pharmaceutically acceptable anion (chloride, bromide, iodide, hexafluorophosphate, or triflate) and M is a coinage metal (Au, Ag, or Cu).
    Type: Application
    Filed: April 21, 2011
    Publication date: November 3, 2011
    Inventor: Chi Ming Che
  • Publication number: 20110230456
    Abstract: The invention relates to nitridoosmium complexes and methods of using these compounds as treatments for cancer.
    Type: Application
    Filed: March 19, 2010
    Publication date: September 22, 2011
    Applicants: THE CITY UNIVERSITY OF HONG KONG, VERSITECH LIMITED
    Inventors: Tai Chu LAU, Yun Wah LAM, Wai Lun MAN, Wen Xiu NI, Chi-Ming CHE
  • Publication number: 20110192455
    Abstract: Organic photovoltaic (OPV) cells and methods of forming the same are provided. An OPV cell can include an organic photoactive layer comprising bis-(8-quinolinolato-N,O)platinum (II) (PtQ2) having a general structure disclosed herein as Structure I. A method of forming an OPV cell can include forming an organic photoactive layer on a substrate, which can include a transparent electrode. The organic photoactive layer can comprises PtQ2 having the general structure of Structure I.
    Type: Application
    Filed: February 7, 2011
    Publication date: August 11, 2011
    Applicant: The University of Hong Kong
    Inventors: Chi Ming Che, Hai Feng Xiang
  • Publication number: 20110098264
    Abstract: The present disclosure is related to a pharmaceutical composition for treatment of cancer comprising a cyclometalated N-heterocyclic carbene complex. The cyclometalated N-heterocyclic carbene complex contains a gold(III) or a platinum(II) atom. The pharmaceutical composition possesses anti-cancer activity such as the induction of cell death, inhibition of cellular proliferation, inhibition of topoisomerase and/or poisoning of topoisomerase.
    Type: Application
    Filed: October 27, 2010
    Publication date: April 28, 2011
    Applicant: THE UNIVERSITY OF HONG KONG
    Inventors: Chi Ming Che, Raymond Wai-Yin Sun, Lok Fung Chow, Jing Yan
  • Publication number: 20110098263
    Abstract: A method for treatment of cancer by inhibiting the activity of histone deacetylase, comprising administering to a human in need of such treatment a composition containing a therapeutically effective amount of a gold(III) complex having the structural formula of or a pharmaceutically acceptable salt thereof, wherein: —R is selected from the group consisting of —OH, —CH2OH, C2H4OH, —C3H6OH or —C4H8OH; and X is independently a pharmaceutically acceptable counter-ion.
    Type: Application
    Filed: October 27, 2010
    Publication date: April 28, 2011
    Inventors: Chi Ming Che, Yu Wang, Raymond Wai Yin Sun, Kim Hei-Man Chow
  • Publication number: 20110009617
    Abstract: Ruthenium nanoparticles supported on non-cross-linked soluble polystyrene were prepared by reacting [RuCl2(C6H5CO2Et)]2 with polystyrene in open air. They effectively catalyze intra- and intermolecular carbenoid insertion into C—H and N—H bonds, alkene cyclopropanation, and ammonium ylide/[2,3]-sigmatropic rearrangement reactions. This supported ruthenium catalyst is much more reactive than [RuCl2(p-cymene)]2 and Ru(Por)CO] for catalytic intermolecular carbenoid C—H bond insertion into saturated alkanes. By using a-diazoacetamide as a substrate for intramolecular carbenoid C—H insertion, the supported ruthenium catalyst can be to recovered and reused for ten successive iterations without significant loss of activity.
    Type: Application
    Filed: July 13, 2010
    Publication date: January 13, 2011
    Inventors: Chi-Ming Che, Kwok-Wai Matthew Choi
  • Publication number: 20100314994
    Abstract: This invention provides a class of organometallic complexes comprising a tridentate isoquinoline-pyridine-benzene based ligand, a mono-dentate ligand and a platinum (II) center which show high emission quantum efficiency and good thermal stability. This invention also discloses organometallic complexes in organic light-emitting diode (OLED) including them.
    Type: Application
    Filed: June 16, 2009
    Publication date: December 16, 2010
    Inventors: Chi Ming CHE, Chi Fai Kui, Chi Chung Kwok
  • Patent number: 7811675
    Abstract: Highly fluorescent metallo-supramolecules based on terpyridine-based monomers and transition metals have been obtained. These robust supramolecules provide high quantum yields with emissions from violet to blue, green or yellow color. They have emerged as promising emitters for polymeric light-emitting diodes (PLEDs) due to desirable properties such as high luminance, high purity, low cost, and good thermal stabilities.
    Type: Grant
    Filed: November 6, 2002
    Date of Patent: October 12, 2010
    Assignee: The University of Hong Kong
    Inventors: Chi-Ming Che, Sze-Chit Yu
  • Patent number: 7695758
    Abstract: Disclosed herein are novel light-emitting materials of Formula I and II below. These new complexes are synthesized and found to be sufficiently stable to allow sublimation and vacuum deposition. These new emitters are electrophosphorescent and can be used in organic light-emitting devices (OLEDs) for device elements capable of emitting light of color ranging from orange to red with high-efficiency and high-brightness. wherein E=Group 16 elements (including sulphur); M=Group 10 metal (including platinum); R1-R14 are each independently selected from the group consisting of hydrogen; halogen; alkyl; substituted alkyl; aryl; substituted aryl, with substituents selected from the group consisting of halogen, lower alkyl and recognized donor and acceptor groups. R1 can also be selected from (C?C)nR15, where (C?C) represents a carbon-carbon triple bond (acetylide group), n is selected from 1 to 10, and R15 is selected from alkyl, aryl, substituted aryl, and tri(alkyl)silyl.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: April 13, 2010
    Inventors: Chi-Ming Che, Wei Lu, Michael Chi-Wang Chan
  • Patent number: 7691495
    Abstract: Disclosed are electrophosphorescent organic metal complexes with formula (I) or (II), of either geometrical isomers, comprising two bidentate NN-type ligandsor a tetradentate NNNN-type ligand, and a transition metal. These electrophosphorescent materials are valuable to the application in organic light-emitting devices (OLEDs), including red-, orange-, or yellow-light OLEDs.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: April 6, 2010
    Assignee: The University of Hong Kong
    Inventors: Chi-Ming Che, Siu-Chung Chan
  • Publication number: 20100069345
    Abstract: The present invention relates to lanthanide porphyrin complexes and their uses as anti-tumor agents. The described complexes show promising cytotoxic properties toward cancer cells in both in vitro and in vivo studies.
    Type: Application
    Filed: October 16, 2006
    Publication date: March 18, 2010
    Inventors: Chi-Ming Che, Suk-Yu Wong
  • Patent number: 7648977
    Abstract: The present invention relates to a pharmaceutical composition comprising one or more of the following ruthenium oxalato compounds I, II, III and IV as an active ingredient. The pharmaceutical composition can be used for the treatment of viral-infected patients or prophylactic treatment of patients at risk from viral infection.
    Type: Grant
    Filed: October 24, 2005
    Date of Patent: January 19, 2010
    Assignee: The University of Hong Kong
    Inventors: Chi-Ming Che, Raymond Wai-Yin Sun, Ella Lai-Ming Wong
  • Patent number: 7632827
    Abstract: Gold(III) phosphine complexes [Aum(CNC)mL]n+ (where HCNCH=2,6-diphenylpyridine) and their use as anti-tumor agents are disclosed. Notable results for the appearance of new potential anti-tumor application of these gold(III) complexes are reported. The described complexes show promising cytotoxic properties toward cancer cells in both in vitro and in vivo studies.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: December 15, 2009
    Assignee: The University of Hong Kong
    Inventors: Chi Ming Che, Raymond Wai Yin Sun, Zhen Fan Yang, Carrie Ka Lei Li