Patents by Inventor James Nicholas Riggins

James Nicholas Riggins 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).

  • Engineered imine reductases and methods for the reductive amination of ketone and amine compounds
    Patent number: 12312609
    Abstract: The present application provides engineered polypeptides having imine reductase activity, polynucleotides encoding the engineered imine reductases, host cells capable of expressing the engineered imine reductases, and methods of using these engineered polypeptides with a range of ketone and amine substrate compounds to prepare secondary and tertiary amine product compounds.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: May 27, 2025
    Assignee: Codexis, Inc.
    Inventors: Nicholas J. Agard, Oscar Alvizo, Melissa Ann Mayo, Stefanie Ng Minor, James Nicholas Riggins, Jeffrey C. Moore
  • ENGINEERED IMINE REDUCTASES AND METHODS FOR THE REDUCTIVE AMINATION OF KETONE AND AMINE COMPOUNDS
    Publication number: 20250137019
    Abstract: The present application provides engineered polypeptides having imine reductase activity, polynucleotides encoding the engineered polypeptides, host cells capable of expressing the engineered polypeptides, and methods of using these engineered polypeptides with a range of ketone and amine substrate compounds to prepare secondary and tertiary amine product compounds.
    Type: Application
    Filed: December 11, 2024
    Publication date: May 1, 2025
    Inventors: Xiang Yi, Oscar Alvizo, Ravi David Garcia, David Entwistle, Charlene Ching, James Nicholas Riggins
  • ENGINEERED GLUCOSE DEHYDROGENASES AND METHODS FOR THE REDUCTIVE AMINATION OF KETONE AND AMINE COMPOUNDS
    Publication number: 20250129343
    Abstract: The present application provides engineered glucose dehydrogenase polypeptides having imine reductase activity, polynucleotides encoding the engineered polypeptides, host cells capable of expressing the engineered polypeptides, and methods of using these engineered polypeptides with a range of ketone and amine substrate compounds to prepare secondary and tertiary amine product compounds.
    Type: Application
    Filed: December 23, 2024
    Publication date: April 24, 2025
    Inventors: Xiang Yi, Oscar Alvizo, Ravi David Garcia, David Entwistle, Charlene Ching, James Nicholas Riggins, Nandhitha Subramanian
  • Engineered imine reductases and methods for the reductive amination of ketone and amine compounds
    Patent number: 12215368
    Abstract: The present application provides engineered polypeptides having imine reductase activity, polynucleotides encoding the engineered polypeptides, host cells capable of expressing the engineered polypeptides, and methods of using these engineered polypeptides with a range of ketone and amine substrate compounds to prepare secondary and tertiary amine product compounds.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: February 4, 2025
    Assignee: Codexis, Inc.
    Inventors: Xiang Yi, Oscar Alvizo, Ravi David Garcia, David Entwistle, Charlene Ching, James Nicholas Riggins
  • Engineered glucose dehydrogenases and methods for the reductive amination of ketone and amine compounds
    Patent number: 12215359
    Abstract: The present application provides engineered glucose dehydrogenase polypeptides having imine reductase activity, polynucleotides encoding the engineered polypeptides, host cells capable of expressing the engineered polypeptides, and methods of using these engineered polypeptides with a range of ketone and amine substrate compounds to prepare secondary and tertiary amine product compounds.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: February 4, 2025
    Assignee: Codexis, Inc.
    Inventors: Xiang Yi, Oscar Alvizo, Ravi David Garcia, David Entwistle, Charlene Ching, James Nicholas Riggins, Nandhitha Subramanian
  • T7 RNA POLYMERASE VARIANTS
    Publication number: 20250027061
    Abstract: The present invention provides engineered RNA polymerase variants and compositions comprising these variants. The present invention further provides engineered T7 RNA polymerase variants and compositions comprising these variants. These variants have been evolved for selective incorporation of the m7G(5?)ppp(5?)m7G cap analog over GTP at the initiation of in vitro transcription. The present invention also provides methods for selective capping of RNA transcripts.
    Type: Application
    Filed: October 8, 2024
    Publication date: January 23, 2025
    Inventors: Mathew G. Miller, Chinping Chng, Oscar Alvizo, Melissa Ann Mayo, James Nicholas Riggins, Xiang Yi, Jonathan S. Penfield, Gjalt W. Huisman, Jared Davis, Yasushi Saotome
  • PENICILLIN-G ACYLASES
    Publication number: 20240409916
    Abstract: The present invention provides engineered penicillin G acylase (PGA) enzymes, polynucleotides encoding the enzymes, compositions comprising the enzymes, and methods of using the engineered PGA enzymes.
    Type: Application
    Filed: August 23, 2024
    Publication date: December 12, 2024
    Inventors: Oscar Alvizo, David Elgart, Robert Kevin Orr, James Nicholas Riggins, Anna Fryszkowska, Katrina W. Lexa, Xiang Yi, Da Duan, Courtney Dianne Moffett, Nikki Dellas, Vesna Mitchell
  • T7 RNA polymerase variants
    Patent number: 12129494
    Abstract: The present invention provides engineered RNA polymerase variants and compositions comprising these variants. The present invention further provides engineered T7 RNA polymerase variants and compositions comprising these variants. These variants have been evolved for selective incorporation of the m7G(5?)ppp(5?)m7G cap analog over GTP at the initiation of in vitro transcription. The present invention also provides methods for selective capping of RNA transcripts.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: October 29, 2024
    Assignee: Codexis, Inc.
    Inventors: Mathew G. Miller, Chinping Chng, Oscar Alvizo, Melissa Ann Mayo, James Nicholas Riggins, Xiang Yi, Jonathan S. Penfield, Gjalt W. Huisman, Jared Davis, Yasushi Saotome
  • Penicillin-G acylases
    Patent number: 12084697
    Abstract: The present invention provides engineered penicillin G acylase (PGA) enzymes, polynucleotides encoding the enzymes, compositions comprising the enzymes, and methods of using the engineered PGA enzymes.
    Type: Grant
    Filed: January 23, 2023
    Date of Patent: September 10, 2024
    Assignee: Codexis, Inc.
    Inventors: Oscar Alvizo, David Elgart, Robert Kevin Orr, James Nicholas Riggins, Anna Fryszkowska, Katrina W. Lexa, Xiang Yi, Da Duan, Courtney Dianne Moffett, Nikki Dellas, Vesna Mitchell
  • P450-BM3 VARIANTS WITH IMPROVED ACTIVITY
    Publication number: 20240190926
    Abstract: The present invention provides improved P450-BM3 variants with improved activity. In some embodiments, the P450-BM3 variants exhibit improved activity on indanone substrates.
    Type: Application
    Filed: November 21, 2023
    Publication date: June 13, 2024
    Inventors: Margie Tabuga Borra-Garske, Jessica Anna Hurtak, Anders Matthew Knight, Kalyanaraman Krishnamoorthy, Jovana Nazor, James Nicholas Riggins, Nandhitha Subramanian, Jonathan Vroom
  • ENGINEERED DEOXYRIBOSE-PHOSPHATE ALDOLASES
    Publication number: 20240076647
    Abstract: The present invention provides engineered deoxyribose-phosphate aldolase polypeptides useful under industrial process conditions for the production of pharmaceutical and fine chemical compounds.
    Type: Application
    Filed: November 7, 2023
    Publication date: March 7, 2024
    Inventors: Da Duan, Oscar Alvizo, Jovana Nazor, Harvinder Chagger Maniar, James Nicholas Riggins, Jonathan Vroom, Santhosh Sivaramakrishnan, Hao Yang, Anna Fryszkowska, Mark A. Huffman, Joshua N. Kolev, Iman Farasat, Agustina Rodriguez-Granillo, Deeptak Verma
  • Engineered deoxyribose-phosphate aldolases
    Patent number: 11845968
    Abstract: The present invention provides engineered deoxyribose-phosphate aldolase polypeptides useful under industrial process conditions for the production of pharmaceutical and fine chemical compounds.
    Type: Grant
    Filed: February 4, 2022
    Date of Patent: December 19, 2023
    Assignee: Codexis, Inc.
    Inventors: Da Duan, Oscar Alvizo, Jovana Nazor, Harvinder Chagger Maniar, James Nicholas Riggins, Jonathan Vroom, Santhosh Sivaramakrishnan, Hao Yang, Anna Fryszkowska, Mark A. Huffman, Joshua N. Kolev, Iman Farasat, Agustina Rodriguez-Granillo, Deeptak Verma
  • PENICILLIN-G ACYLASES
    Publication number: 20230227805
    Abstract: The present invention provides engineered penicillin G acylase (PGA) enzymes, polynucleotides encoding the enzymes, compositions comprising the enzymes, and methods of using the engineered PGA enzymes.
    Type: Application
    Filed: January 23, 2023
    Publication date: July 20, 2023
    Inventors: Oscar Alvizo, David Elgart, Robert Kevin Orr, James Nicholas Riggins, Anna Fryszkowska, Katrina W. Lexa, Xiang Yi, Da Duan, Courtney Dianne Moffett, Nikki Dellas, Vesna Mitchell
  • CARBOXYESTERASE POLYPEPTIDES FOR KINETIC RESOLUTION
    Publication number: 20230159904
    Abstract: The present invention provides engineered carboxyesterase enzymes having improved properties as compared to a naturally occurring wild-type carboxyesterase enzymes, as well as polynucleotides encoding the engineered carboxyesterase enzymes, host cells capable of expressing the engineered carboxyesterase enzymes, and methods of using the engineered carboxyesterase enzymes in hydrolysis reactions.
    Type: Application
    Filed: April 6, 2021
    Publication date: May 25, 2023
    Inventors: Rama Voladri, Jessica Anna Hurtak, Auric Anthony Sowell-Kantz, Nandhitha Subramanian, Ericka Bermudez, David Entwistle, Melissa Ann Mayo, James Nicholas Riggins
  • Penicillin-G acylases
    Patent number: 11591588
    Abstract: The present invention provides engineered penicillin G acylase (PGA) enzymes, polynucleotides encoding the enzymes, compositions comprising the enzymes, and methods of using the engineered PGA enzymes.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: February 28, 2023
    Assignee: Codexis, Inc.
    Inventors: Oscar Alvizo, David Elgart, Robert Kevin Orr, James Nicholas Riggins, Anna Fryszkowska, Katrina W. Lexa, Xiang Yi, Da Duan, Courtney Dianne Moffett, Nikki Dellas, Vesna Mitchell
  • TRANSGLUTAMINASE VARIANTS
    Publication number: 20220220456
    Abstract: The present invention provides engineered transglutaminase enzymes, polynucleotides encoding the enzymes, compositions comprising the enzymes, methods of producing these enzymes, and methods of using the engineered transglutaminase enzymes.
    Type: Application
    Filed: March 28, 2022
    Publication date: July 14, 2022
    Inventors: Jovana Nazor, Jie Yang, Goutami Banerjee, Xiyun Zhang, James Nicholas Riggins, Erika M. Milczek, Jeffrey C. Moore
  • ENGINEERED IMINE REDUCTASES AND METHODS FOR THE REDUCTIVE AMINATION OF KETONE AND AMINE COMPOUNDS
    Publication number: 20220213518
    Abstract: The present application provides engineered polypeptides having imine reductase activity, polynucleotides encoding the engineered polypeptides, host cells capable of expressing the engineered polypeptides, and methods of using these engineered polypeptides with a range of ketone and amine substrate compounds to prepare secondary and tertiary amine product compounds.
    Type: Application
    Filed: April 23, 2020
    Publication date: July 7, 2022
    Inventors: Xiang Yi, Oscar Alvizo, Ravi David Garcia, David Entwistle, Charlene Ching, James Nicholas Riggins
  • T7 RNA POLYMERASE VARIANTS
    Publication number: 20220186197
    Abstract: The present invention provides engineered RNA polymerase variants and compositions comprising these variants. The present invention further provides engineered T7 RNA polymerase variants and compositions comprising these variants. These variants have been evolved for selective incorporation of the m7G(5?)ppp(5?)m7G cap analog over GTP at the initiation of in vitro transcription. The present invention also provides methods for selective capping of RNA transcripts.
    Type: Application
    Filed: December 21, 2021
    Publication date: June 16, 2022
    Inventors: Mathew G. Miller, Chinping Chng, Oscar Alvizo, Melissa Ann Mayo, James Nicholas Riggins, Xiang Yi, Jonathan S. Penfield, Gjalt W. Huisman, Jared Davis, Yasushi Saotome
  • ENGINEERED DEOXYRIBOSE-PHOSPHATE ALDOLASES
    Publication number: 20220162580
    Abstract: The present invention provides engineered deoxyribose-phosphate aldolase polypeptides useful under industrial process conditions for the production of pharmaceutical and fine chemical compounds.
    Type: Application
    Filed: February 4, 2022
    Publication date: May 26, 2022
    Inventors: Da Duan, Oscar Alvizo, Jovana Nazor, Harvinder Chagger Maniar, James Nicholas Riggins, Jonathan Vroom, Santhosh Sivaramakrishnan, Hao Yang, Anna Fryszkowska, Mark A. Huffman, Joshua N. Kolev, Iman Farasat, Agustina Rodriguez-Granillo, Deeptak Verma
  • ENGINEERED GLUCOSE DEHYDROGENASES AND METHODS FOR THE REDUCTIVE AMINATION OF KETONE AND AMINE COMPOUNDS
    Publication number: 20220145268
    Abstract: The present application provides engineered glucose dehydrogenase polypeptides having imine reductase activity, polynucleotides encoding the engineered polypeptides, host cells capable of expressing the engineered polypeptides, and methods of using these engineered polypeptides with a range of ketone and amine substrate compounds to prepare secondary and tertiary amine product compounds.
    Type: Application
    Filed: April 23, 2020
    Publication date: May 12, 2022
    Inventors: Xiang Yi, Oscar Alvizo, Ravi David Garcia, David Entwistle, Charlene Ching, James Nicholas Riggins, Nandhitha Subramanian