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).

  • Patent number: 7595119
    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: August 30, 2006
    Date of Patent: September 29, 2009
    Inventors: Chi-Ming Che, Wei Lu, Michael Chi-Wang Chan
  • Patent number: 7582750
    Abstract: Aldehydes were obtained in excellent yields from ruthenium-porphyrin-catalyzed oxidation of various terminal alkenes with 2,6-dichloropyridine N-oxide under mild conditions. The aldehydes generated from these ruthenium-catalyzed alkene oxidation reactions can be used in-situ for olefination reactions with ethyl diazoacetate in the presence of PPh3, leading to one-pot diazoacetate olefination starting from alkenes.
    Type: Grant
    Filed: August 17, 2004
    Date of Patent: September 1, 2009
    Assignee: University of Hong Kong
    Inventors: Chi-Ming Che, Jian Chen
  • Patent number: 7541379
    Abstract: The present invention relates to di(amido-substituted)-heteroarene compounds and their use as osteoblastogenesis agents. The invention provides a method for inducing osteogenesis in a precursor cell capable of undergoing osteogenesis.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: June 2, 2009
    Assignee: The University of Hong Kong
    Inventors: Chi Ming Che, Annie Wai-Chee Kung
  • Patent number: 7482478
    Abstract: Diastereoselective epoxidation of allylically substituted alkenes using metalloporphyrins as catalyst provides high trans-selectivities (i.e., trans-:cis-epoxide ratio). A diversity of cycloalkenes bearing different allylic substituents are shown to be efficiently epoxidized to afford the corresponding trans-epoxides with excellent trans-selectivities (up to >98%) and good yields (up to 99%). Acyclic allylic alkenes bearing different allylic substituents are efficiently epoxidized to afford the corresponding erythro-epoxides with good erythro-selectivities. The metalloporphyrin-catalyzed reactions exhibit up to 20 times higher trans-selectivities than the conventional method using m-chloroperoxybenzoic acid as oxidant.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: January 27, 2009
    Assignee: The University of Hong Kong
    Inventors: Chi-Ming Che, Man-Kin Wong
  • Patent number: 7468434
    Abstract: This invention provides a method for treating an eye disease in a patient comprising: providing a photosensitive prodrug that releases upon exposure to light an active ingredient to treat the eye disease; administering the prodrug in a pharmaceutically accepted vehicle to the subject, and exposing the eye of the subject to an external light source to cause the prodrug to release the active ingredient. This invention also provides a composition for the treatment of glaucoma, comprising a compound containing a lithium ion-chelated in a crown ether- or aza-crown ether-containing chromene or diazene derivative and a pharmaceutically acceptable carrier.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: December 23, 2008
    Assignee: The University of Hong Kong
    Inventors: Paul Michel Georges Vanhoutte, Chi-Ming Che, Kwok-Fai So, Iona Hiu Tung Sham
  • Publication number: 20080309227
    Abstract: The invention provides organometallic complexes comprising an extended ?-conjugated tridentate ligand having a platinum center in which chemical and/or physical properties of the complexes may be modified by changing the structure of the ligands. The complex finds use in devices incorporated into electroluminescent devices, flat panel displays, organic light emitting devices, polymer light emitting devices, transistors, serrors, and lasers.
    Type: Application
    Filed: June 12, 2008
    Publication date: December 18, 2008
    Inventor: CHI MING CHE
  • Publication number: 20080166429
    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: Application
    Filed: December 20, 2007
    Publication date: July 10, 2008
    Inventors: Chi Ming Che, Raymond Wai Yin Sun, Zhen Fan Yang, Carrie Ka Lei Li
  • Patent number: 7393985
    Abstract: The present invention relates to the use of nanosized metal particles (e.g., ruthenium) grafted on inert solid support for oxidation of alkenes. The supported metal catalyst can effect cis-dihydroxylation and oxidative cleavage of alkenes to give the respective cis-diols and carbonyl products.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: July 1, 2008
    Assignee: The University of Hong Kong
    Inventors: Chi-Ming Che, Wing-Yiu Yu, Chi-Ming Ho
  • Patent number: 7361415
    Abstract: Disclosed are emissive materials of formula (I) or (II), comprising two bidentate NO-type ligands, or a tetradentate NOON-type ligand, and a transition metal. The emissive materials are useful as electrophosphorescent emitters in organic light-emitting devices. Also disclosed are methods for preparing organic light-emitting diodes comprising these emissive materials, and the use of such diodes as white and yellow organic light-emitting devices.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: April 22, 2008
    Assignee: The University of Hong Kong
    Inventors: Chi-Ming Che, Siu-Chung Chan
  • Publication number: 20070298127
    Abstract: This invention provides a method for treating an eye disease in a patient comprising: providing a photosensitive prodrug that releases upon exposure to light an active ingredient to treat the eye disease; administering the prodrug in a pharmaceutically accepted vehicle to the subject, and exposing the eye of the subject to an external light source to cause the prodrug to release the active ingredient. This invention also provides a composition for the treatment of glaucoma, comprising a compound containing a lithium ion-chelated in a crown ether- or aza-crown ether-containing chromene or diazene derivative and a pharmaceutically acceptable carrier.
    Type: Application
    Filed: December 21, 2005
    Publication date: December 27, 2007
    Inventors: Paul Vanhoutte, Chi-Ming Che, Kwok-Fai So, Iona Sham
  • Publication number: 20070148495
    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: Application
    Filed: March 5, 2007
    Publication date: June 28, 2007
    Inventors: Chi-Ming Che, Siu-Chung Chan
  • Publication number: 20070148334
    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: Application
    Filed: March 2, 2007
    Publication date: June 28, 2007
    Inventors: Chi-Ming Che, Wei Lu, Michael Chan
  • Publication number: 20070145359
    Abstract: The invention provides organic thin film transistors including quinacridone derivatives with formula (I). These OTFTs are useful in making flat panel displays, photovoltaic devices and sensors. In the present invention, the disclosed quinacridone derivatives exhibit as p-type organic semiconductors in OTFTs.
    Type: Application
    Filed: December 5, 2006
    Publication date: June 28, 2007
    Inventor: Chi Ming Che
  • Publication number: 20070104978
    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: Application
    Filed: August 30, 2006
    Publication date: May 10, 2007
    Inventors: Chi-Ming Che, Wei Lu, Michael Chan
  • Publication number: 20070105952
    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: Application
    Filed: October 24, 2005
    Publication date: May 10, 2007
    Inventors: Chi-Ming Che, Raymond Wai-Yin Sun, Ella Lai-Ming Wong
  • Patent number: 7157155
    Abstract: Materials containing one or more borazine rings are employed as materials for electroluminescent devices. The compounds have molecular structures represented by the following formula: in which R1–R6 are independently a metal; a whole or part of an optionally substituted borazine ring; hydrogen; halogen; hydroxyl; optionally substituted alkyl, cycloalkyl, aryl, acyl, alkoxy, acyloxy, amino, acylamino, aralkyl, cyano, carboxyl, thio, vinyl, styryl, aminocarbonyl, carbamoyl, aryloxycarbonyl, phenoxycarbonyl, or alkoxycarbonyl, as well as recognized donor and acceptor groups. The compounds have high thermal stability as well as hole and electron mobilities.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: January 2, 2007
    Assignee: The University of Hong Kong
    Inventors: Chi-Ming Che, Iona Hiu Tung Sham
  • Patent number: 7105660
    Abstract: An intramolecular amidation processes for substrates such as sulfamates using chiral and non-chiral metalloporphyrin complexes which can maximize catalytic activity, enhance efficiency, stereoselectivity and speed of amidation reactions is described. The chiral metalloporphyrin catalyzed amidation of sulfamates exhibits excellent cis-selectivity, affording cyclic sulfamidates with high enantiomeric excess values.
    Type: Grant
    Filed: March 3, 2004
    Date of Patent: September 12, 2006
    Assignee: University of Hong Kong
    Inventors: Chi-Ming Che, Jiang-Lin Liang
  • Publication number: 20060175605
    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: Application
    Filed: April 10, 2006
    Publication date: August 10, 2006
    Inventors: Chi-Ming Che, Wei Lu, Michael Chan
  • Patent number: 7026480
    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 8, 2002
    Date of Patent: April 11, 2006
    Assignee: The University of Hong Kong
    Inventors: Chi-Ming Che, Wei Lu, Michael Chi-Wang Chan
  • Publication number: 20060041121
    Abstract: Aldehydes were obtained in excellent yields from ruthenium-porphyrin-catalyzed oxidation of various terminal alkenes with 2,6-dichloropyridine N-oxide under mild conditions. The aldehydes generated from these ruthenium-catalyzed alkene oxidation reactions can be used in-situ for olefination reactions with ethyl diazoacetate in the presence of PPh3, leading to one-pot diazoacetate olefination starting from alkenes.
    Type: Application
    Filed: August 17, 2004
    Publication date: February 23, 2006
    Inventors: Chi-Ming Che, Jian Chen