Patents by Inventor Tin Cho Cheung

Tin Cho Cheung 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).

  • Method of making bioethanol by using glucose isomerase mutants
    Patent number: 8012726
    Abstract: This invention provides use of a series of recombinant Thermoanaerobacterium saccharolyticum glucose isomerases with improved catalytic activity obtained by using recombinant techniques. These mutants comprise at least one amino acid variation at position 87, position 139, position 182, position 187, position 217, position 260, position 276, or position 299, and can be used in the conversion of hemicellulose to ethanol.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: September 6, 2011
    Assignee: BioRight Worldwide Company Limited
    Inventors: Jun Wang, Rongzhao Fu, Tin Cho Cheung
  • Use of Glucose Isomerase Mutants
    Publication number: 20090221048
    Abstract: This invention provides use of a series of recombinant Thermoanaerobacterium saccharolyticum glucose isomerases with improved catalytic activity obtained by using recombinant techniques. These mutants comprise at least one amino acid variation at position 87, position 139, position 182, position 187, position 217, position 260, position 276, or position 299, and can be used in the conversion of hemicellulose to ethanol.
    Type: Application
    Filed: October 30, 2006
    Publication date: September 3, 2009
    Applicant: GENEHARBOR (HK) TECHNOLOGIES LTD.
    Inventors: Jun Wang, Rongzhao Fu, Tin Cho Cheung