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).
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Patent number: 12091685Abstract: 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: GrantFiled: May 11, 2022Date of Patent: September 17, 2024Assignee: New England Biolabs, Inc.Inventors: Jennifer Ong, Vladimir Potapov, Kuo-Chan Hung, Haruichi Asahara, Shaorong Chong, George Tzertzinis
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Publication number: 20220275352Abstract: 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: ApplicationFiled: May 11, 2022Publication date: September 1, 2022Applicant: New England Biolabs, Inc.Inventors: Jennifer Ong, Vladimir Potapov, Kuo-Chan Hung, Haruichi Asahara, Shaorong Chong, George Tzertzinis
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Patent number: 11359184Abstract: 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: GrantFiled: November 11, 2019Date of Patent: June 14, 2022Assignee: New England Biolabs, Inc.Inventors: Jennifer Ong, Vladimir Potapov, Kuo-Chan Hung, Haruichi Asahara, Shaorong Chong, George Tzertzinis
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Patent number: 10991855Abstract: 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: GrantFiled: April 16, 2018Date of Patent: April 27, 2021Assignee: Lextar Electronics CorporationInventors: Cheng-Ping Chang, Zong-Han Yu, Kuo-Chan Hung
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Publication number: 20200123513Abstract: 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: ApplicationFiled: November 11, 2019Publication date: April 23, 2020Applicant: New England Biolabs, Inc.Inventors: Jennifer Ong, Vladimir Potapov, Kuo-Chan Hung, Haruichi Asahara, Shaorong Chong, George Tzertzinis
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Patent number: 10624962Abstract: 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: GrantFiled: April 29, 2011Date of Patent: April 21, 2020Assignee: DEVELOPMENT CENTER FOR BIOTECHNOLOGYInventors: Yu-Shen Hsu, I-Ling Kou, Kuo-Chan Hung, Yuan-Hsin Lu, Ta-Tung Yuan
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Patent number: 10519431Abstract: 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: GrantFiled: May 12, 2017Date of Patent: December 31, 2019Assignee: New England Biolabs, Inc.Inventors: Jennifer Ong, Vladimir Potapov, Kuo-Chan Hung, Haruichi Asahara, Shaorong Chong, George Tzertzinis
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Publication number: 20190319175Abstract: 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: ApplicationFiled: April 16, 2018Publication date: October 17, 2019Inventors: Cheng-Ping CHANG, Zong-Han YU, Kuo-Chan HUNG
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Publication number: 20190024061Abstract: 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: ApplicationFiled: January 12, 2017Publication date: January 24, 2019Applicant: New England Biolabs, Inc.Inventors: Jennifer Ong, Shaorong Chong, Haruichi Asahara, Kuo-Chan Hung, Vladimir Potapov, George Tzertzinis
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Publication number: 20170247670Abstract: 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: ApplicationFiled: May 12, 2017Publication date: August 31, 2017Applicant: New England Biolabs, Inc.Inventors: Jennifer Ong, Vladimir Potapov, Kuo-Chan Hung, Haruichi Asahara, Shaorong Chong, George Tzertzinis
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Publication number: 20150055337Abstract: 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: ApplicationFiled: April 15, 2014Publication date: February 26, 2015Applicant: Lextar Electronics CorporationInventors: Liang-Ta LIN, Kuo-Chan HUNG
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Publication number: 20110274717Abstract: 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: ApplicationFiled: April 29, 2011Publication date: November 10, 2011Applicant: Development Center for BiotechInventors: Yu-Shen Hsu, I-Ling Kou, Kuo-Chan Hung, Yuan-Hsin Lu, Ta-Tung Yuan