Patents by Inventor Kuo-Chan Hung

Kuo-Chan Hung 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: 12091685
    Abstract: A bacteriophage RNA polymerase variant is provided. In some embodiments, the variant may have increased thermostability relative to the corresponding wild type bacteriophage RNA polymerase and/or wild type T7 RNA polymerase. Compositions, kits and methods that employ the variant are also provided.
    Type: Grant
    Filed: May 11, 2022
    Date of Patent: September 17, 2024
    Assignee: New England Biolabs, Inc.
    Inventors: Jennifer Ong, Vladimir Potapov, Kuo-Chan Hung, Haruichi Asahara, Shaorong Chong, George Tzertzinis
  • Publication number: 20220275352
    Abstract: A bacteriophage RNA polymerase variant is provided. In some embodiments, the variant may have increased thermostability relative to the corresponding wild type bacteriophage RNA polymerase and/or wild type T7 RNA polymerase. Compositions, kits and methods that employ the variant are also provided.
    Type: Application
    Filed: May 11, 2022
    Publication date: September 1, 2022
    Applicant: New England Biolabs, Inc.
    Inventors: Jennifer Ong, Vladimir Potapov, Kuo-Chan Hung, Haruichi Asahara, Shaorong Chong, George Tzertzinis
  • Patent number: 11359184
    Abstract: A bacteriophage RNA polymerase variant is provided. In some embodiments, the variant may have increased thermostability relative to the corresponding wild type bacteriophage RNA polymerase and/or wild type T7 RNA polymerase. Compositions, kits and methods that employ the variant are also provided.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: June 14, 2022
    Assignee: New England Biolabs, Inc.
    Inventors: Jennifer Ong, Vladimir Potapov, Kuo-Chan Hung, Haruichi Asahara, Shaorong Chong, George Tzertzinis
  • Patent number: 10991855
    Abstract: A white light emitting device includes a blue LED chip having a dominant emission wavelength of about 440-465 nm, and a phosphor layer configured to be excited by the dominant emission wavelength of the blue LED chip. The phosphor layer includes a first phosphor having a peak emission wavelength of about 480-519 nm, a second phosphor having a peak emission wavelength of about 520-560 nm, and a third phosphor having a peak emission wavelength of about 620-670 nm. The first phosphor and the second phosphor both have a garnet structure as represented by A3B5O12:Ce, A is selected from the group consisting of Y, Lu, and a combination of thereof, and B is selected from the group consisting of Al, Ga, and a combination of thereof.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: April 27, 2021
    Assignee: Lextar Electronics Corporation
    Inventors: Cheng-Ping Chang, Zong-Han Yu, Kuo-Chan Hung
  • Publication number: 20200123513
    Abstract: A bacteriophage RNA polymerase variant is provided. In some embodiments, the variant may have increased thermostability relative to the corresponding wild type bacteriophage RNA polymerase and/or wild type T7 RNA polymerase. Compositions, kits and methods that employ the variant are also provided.
    Type: Application
    Filed: November 11, 2019
    Publication date: April 23, 2020
    Applicant: New England Biolabs, Inc.
    Inventors: Jennifer Ong, Vladimir Potapov, Kuo-Chan Hung, Haruichi Asahara, Shaorong Chong, George Tzertzinis
  • Patent number: 10624962
    Abstract: A detoxified recombinant E. coli heat-labile enterotoxin mutant, LTS61K, is employed as a carrier protein to conjugate polysaccharide. The LTS61K contains a mutated mature sub-unit A (LTA) that includes lysine at amino acid position 61 and a wild-type mature sub-unit B (LTB). Various types of bacterial capsular polysaccharide antigens were chemically conjugated with the LTS61K protein by a reductive amination reaction. The conjugated polysaccharide-LTS61K products were physically, chemically and biochemically identified as soluble form. Rabbits were immunized intramuscularly to determine the immunogenicity of conjugated vaccines by ELISA to detect anti-polysaccharide antigen IgG titers and serum bactericidal assay thereby determining the functional activity of the antibodies. Study results show that conjugated polysaccharide-LTS61K vaccines induce higher polysaccharide-specific IgG titers and greater bactericidal activity in sera than that of polysaccharide alone or polysaccharide mixed with LTS61K.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: April 21, 2020
    Assignee: DEVELOPMENT CENTER FOR BIOTECHNOLOGY
    Inventors: Yu-Shen Hsu, I-Ling Kou, Kuo-Chan Hung, Yuan-Hsin Lu, Ta-Tung Yuan
  • Patent number: 10519431
    Abstract: A bacteriophage RNA polymerase variant is provided. In some embodiments, the variant may have increased thermostability relative to the corresponding wild type bacteriophage RNA polymerase and/or wild type T7 RNA polymerase. Compositions, kits and methods that employ the variant are also provided.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: December 31, 2019
    Assignee: New England Biolabs, Inc.
    Inventors: Jennifer Ong, Vladimir Potapov, Kuo-Chan Hung, Haruichi Asahara, Shaorong Chong, George Tzertzinis
  • Publication number: 20190319175
    Abstract: A white light emitting device includes a blue LED chip having a dominant emission wavelength of about 440-465 nm, and a phosphor layer configured to be excited by the dominant emission wavelength of the blue LED chip. The phosphor layer includes a first phosphor having a peak emission wavelength of about 480-519 nm, a second phosphor having a peak emission wavelength of about 520-560 nm, and a third phosphor having a peak emission wavelength of about 620-670 nm. The first phosphor and the second phosphor both have a garnet structure as represented by A3B5O12:Ce, A is selected from the group consisting of Y, Lu, and a combination of thereof, and B is selected from the group consisting of Al, Ga, and a combination of thereof.
    Type: Application
    Filed: April 16, 2018
    Publication date: October 17, 2019
    Inventors: Cheng-Ping CHANG, Zong-Han YU, Kuo-Chan HUNG
  • Publication number: 20190024061
    Abstract: A bacteriophage RNA polymerase variant is provided. In some embodiments, the variant may have increased thermostability relative to the corresponding wild type bacteriophage RNA polymerase and/or wild type T7 RNA polymerase. Compositions, kits and methods that employ the variant are also provided.
    Type: Application
    Filed: January 12, 2017
    Publication date: January 24, 2019
    Applicant: New England Biolabs, Inc.
    Inventors: Jennifer Ong, Shaorong Chong, Haruichi Asahara, Kuo-Chan Hung, Vladimir Potapov, George Tzertzinis
  • Publication number: 20170247670
    Abstract: A bacteriophage RNA polymerase variant is provided. In some embodiments, the variant may have increased thermostability relative to the corresponding wild type bacteriophage RNA polymerase and/or wild type T7 RNA polymerase. Compositions, kits and methods that employ the variant are also provided.
    Type: Application
    Filed: May 12, 2017
    Publication date: August 31, 2017
    Applicant: New England Biolabs, Inc.
    Inventors: Jennifer Ong, Vladimir Potapov, Kuo-Chan Hung, Haruichi Asahara, Shaorong Chong, George Tzertzinis
  • Publication number: 20150055337
    Abstract: Disclosed herein is a light-emitting device that includes a blue light source, a first phosphor and a red light source. The blue light source emits blue light. The first phosphor is excited by the blue light to emit light that is then combined with the blue light to produce first white light. The first white light falls in a first region of (0.397, 0.502), (0.337, 0.512), (0.26, 0.34), and (0.313, 0.3334), based on a CIE 1931 color coordinate standard. The red light source emits red light to adjust the first white light into second white light.
    Type: Application
    Filed: April 15, 2014
    Publication date: February 26, 2015
    Applicant: Lextar Electronics Corporation
    Inventors: Liang-Ta LIN, Kuo-Chan HUNG
  • Publication number: 20110274717
    Abstract: A detoxified recombinant E. coli heat-labile enterotoxin mutant, LTS61K, is employed as a carrier protein to conjugate polysaccharide. The LTS61K contains a mutated mature sub-unit A (LTA) that includes lysine at amino acid position 61 and a wild-type mature sub-unit B (LTB). Various types of bacterial capsular polysaccharide antigens were chemically conjugated with the LTS61K protein by a reductive amination reaction. The conjugated polysaccharide-LTS61K products were physically, chemically and biochemically identified as soluble form. Rabbits were immunized intramuscularly to determine the immunogenicity of conjugated vaccines by ELISA to detect anti-polysaccharide antigen IgG titers and serum bactericidal assay thereby determining the functional activity of the antibodies. Study results show that conjugated polysaccharide-LTS61K vaccines induce higher polysaccharide-specific IgG titers and greater bactericidal activity in sera than that of polysaccharide alone or polysaccharide mixed with LTS61K.
    Type: Application
    Filed: April 29, 2011
    Publication date: November 10, 2011
    Applicant: Development Center for Biotech
    Inventors: Yu-Shen Hsu, I-Ling Kou, Kuo-Chan Hung, Yuan-Hsin Lu, Ta-Tung Yuan