Patents by Inventor Chi Bun Ching

Chi Bun Ching 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: 20150147774
    Abstract: The present disclosure provides an isolated linear expression cassette. The disclosed cassette comprises a bidirectional promoter; a first gene and a second gene that the genes are respectively and operably linked to one end of the bidirectional promoter; a terminator located immediately next to end of each gene; a 5?-homogolgous region to genomic context of interest and a 3?-homogolgous region to genomic context of interest respectively flanking 5? end and 3? end of the cassette; and a dominant selection marker residing within the construct and being arranged in between the flanking 5?-homogolgous region to genomic context of interest and a 3?-homogolgous region to genomic context of interest. Preferably, the cassette is capable of being integrated into genome of transformed yeasts upon being transported into the transformed cell.
    Type: Application
    Filed: November 24, 2014
    Publication date: May 28, 2015
    Inventors: Jifeng YUAN, Chi Bun CHING
  • Publication number: 20100159508
    Abstract: The invention provides an amphiphilic copolymer comprising monomer units derived from a first monomer and monomer units derived from a second monomer. The copolymer has at least one hydrophobic endgroup. The first monomer is such that the copolymer is thermally responsive and the second monomer comprises a carboxylic acid or carboxylate group.
    Type: Application
    Filed: July 6, 2007
    Publication date: June 24, 2010
    Applicants: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH, NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Yi-Yan Yang, Wei Liu Hong, Chi-Bun Ching, Chen Hong
  • Patent number: 7208086
    Abstract: A novel conjugate of a support material and an oligomer or polymer of a saccharide that is linked to the support material via urea linkages, and in which the oligomers or polymers are cross-linked via urea linkages provides a valuable stationary phase for chromatography. It is particularly valuable as a chiral stationary phase in enantiomeric separations and enantiomeric analysis.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: April 24, 2007
    Assignee: National University of Singapore
    Inventors: Siu Choon Ng, Chi Bun Ching, Lifeng Zhang, Lei Chen
  • Publication number: 20040154987
    Abstract: A novel conjugate of a support material and an oligomer or polymer of a saccharide that is linked to the support material via urea linkages, and in which the oligomers or polymers are cross-linked via urea linkages provides a valuable stationary phase for chromatography. It is particularly valuable as a chiral stationary phase in enantiomeric separations and enantiomeric analysis.
    Type: Application
    Filed: February 4, 2004
    Publication date: August 12, 2004
    Applicant: National University of Singapore
    Inventors: Siu Choon Ng, Chi Bun Ching, Lifeng Zhang, Lei Chen
  • Publication number: 20040129640
    Abstract: A novel conjugate comprising a support material and an oligomer or polymer of a saccharide, in which the oligomer or polymer is linked to the support material via one or more ether, carbamate, ester, or imino linkages between the saccharide and the support material, and in which the saccharide is fully functionalized, provides a valuable stationary phase for chromatography. It is particularly valuable as a chiral stationary phase in enantiomeric separations and enantiomeric analysis.
    Type: Application
    Filed: January 18, 2002
    Publication date: July 8, 2004
    Applicant: National University of Singapore
    Inventors: Siu Choon Ng, Chi Bun Ching, Li Feng Zhang, Lei Chen
  • Patent number: 6720285
    Abstract: A conjugate of a support material and an oligomer or polymer of a saccharide that is linked to the support material via urea linkages, and in which the oligomers or polymers are cross-linked via urea linkages provides a valuable stationary phase for chromatography. It is particularly valuable as a chiral stationary phase in enantiomeric separations and enantiomeric analysis.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: April 13, 2004
    Assignee: National University of Singapore
    Inventors: Siu Choon Ng, Chi Bun Ching, Lifeng Zhang, Lei Chen
  • Publication number: 20030159992
    Abstract: A novel conjugate comprising a support material and an oligomer or polymer of a saccharide, in which the oligomer or polymer is linked to the support material via one or more ether, carbamate, ester, or imino linkages between the saccharide and the support material, and in which the saccharide is fully functionalized, provides a valuable stationary phase for chromatography. It is particularly valuable as a chiral stationary phase in enantiomeric separations and enantiomeric analysis.
    Type: Application
    Filed: January 18, 2002
    Publication date: August 28, 2003
    Applicant: National University of Singapore
    Inventors: Siu Choon Ng, Chi Bun Ching, Li Feng Zhang, Lei Chen
  • Publication number: 20020058588
    Abstract: A novel conjugate of a support material and an oligomer or polymer of a saccharide that is linked to the support material via urea linkages, and in which the oligomers or polymers are cross-linked via urea linkages provides a valuable stationary phase for chromatography. It is particularly valuable as a chiral stationary phase in enantiomeric separations and enantiomeric analysis.
    Type: Application
    Filed: June 22, 2001
    Publication date: May 16, 2002
    Applicant: National University of Singapore
    Inventors: Siu Choon Ng, Chi Bun Ching, Lifeng Zhang, Lei Chen
  • Patent number: 6296768
    Abstract: Novel and improved chiral stationary phases (CSP) materials comprising a support and completely regiodefined derivitised cyclodextrin chemically bonded via single or double urethane linkage(s) universally applicable in HPLC, LC, TLC, and CCE are obtained using a process based on the almost quantitative reaction of pre-synthesized regiodefined per-functionalized mono- or di- azidocyclodextrin with primary amines.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: October 2, 2001
    Assignee: National University of Singapore
    Inventors: Siu Choon Ng, Lifong Zhang, Chi Bun Ching
  • Patent number: 6017458
    Abstract: Novel and improved chiral stationary phases (CSP) materials comprising a support and completely regiodefined derivitized cyclodextrin chemically bonded via single or double urethane linkage(s) universally applicable in HPLC, LC, TLC, and CCE are obtained using a process based on the almost quantitative reaction of pre-synthesized regiodefined per-functionalized mono- or di- azidocyclodextrin with primary amines.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: January 25, 2000
    Assignee: National University of Singapore
    Inventors: Siu Choon Ng, Lifeng Zhang, Chi Bun Ching