Patents by Inventor ELLEN D SEMKE

ELLEN D SEMKE 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 glucosyltransferases
    Patent number: 11952598
    Abstract: Disclosed herein are glucosyltransferases with modified amino acid sequences. Such engineered enzymes exhibit improved alpha-glucan product yields and/or lower leucrose yields, for example. Further disclosed are reactions and methods in which engineered glucosyltransferases are used to produce alpha-glucan.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: April 9, 2024
    Assignee: NUTRITION & BIOSCIENCES USA 4, INC.
    Inventors: Yougen Li, Mark S. Payne, Jared B. Parker, Slavko Kralj, Veli Alkan, Richard R. Bott, Robert Dicosimo, Qiong Cheng, Ellen D. Semke, Susan Marie Hennessey
  • ENGINEERED GLUCOSYLTRANSFERASES
    Publication number: 20230392128
    Abstract: Disclosed herein are glucosyltransferases with modified amino acid sequences. Such engineered enzymes exhibit improved alpha-glucan product yields and/or lower leucrose yields, for example. Further disclosed are reactions and methods in which engineered glucosyltransferases are used to produce alpha-glucan.
    Type: Application
    Filed: January 20, 2023
    Publication date: December 7, 2023
    Inventors: Yougen Li, Ellen D. Semke, Qiong Cheng, Jian Ping Lai
  • Engineered glucosyltransferases
    Patent number: 11560551
    Abstract: Disclosed herein are glucosyltransferases with modified amino acid sequences. Such engineered enzymes exhibit improved alpha-glucan product yields and/or lower leucrose yields, for example. Further disclosed are reactions and methods in which engineered glucosyltransferases are used to produce alpha-glucan.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: January 24, 2023
    Assignee: NUTRITION & BIOSCIENCES USA 4, INC.
    Inventors: Yougen Li, Ellen D. Semke, Qiong Cheng, Jian Ping Lai
  • ENGINEERED ALPHA-1,3 BRANCHING ENZYMES
    Publication number: 20220267745
    Abstract: Disclosed herein are glucosyltransferases with modified amino acid sequences. Such engineered enzymes have modified alpha-1,3-branching activity. Further disclosed are reactions and methods in which engineered glucosyltransferases can be used to add one or more alpha-1,3 branches to a suitable acceptor such as glucan.
    Type: Application
    Filed: July 8, 2020
    Publication date: August 25, 2022
    Inventors: Yougen LI, Ellen D. SEMKE
  • ENGINEERED GLUCOSYLTRANSFERASES
    Publication number: 20220204951
    Abstract: Disclosed herein are glucosyltransferases with modified amino acid sequences. Such engineered enzymes synthesize insoluble alpha-glucan products having decreased molecular weight. Further disclosed are reactions and methods in which engineered glucosyltransferases are used to produce insoluble alpha-glucan.
    Type: Application
    Filed: December 13, 2021
    Publication date: June 30, 2022
    Inventors: YOUGEN LI, ELLEN D. SEMKE
  • ENGINEERED GLUCOSYLTRANSFERASES
    Publication number: 20210395705
    Abstract: Disclosed herein are glucosyltransferases with modified amino acid sequences. Such engineered enzymes exhibit improved alpha-glucan product yields and/or lower leucrose yields, for example. Further disclosed are reactions and methods in which engineered glucosyltransferases are used to produce alpha-glucan.
    Type: Application
    Filed: June 4, 2021
    Publication date: December 23, 2021
    Inventors: Yougen Li, MARK S. PAYNE, JARED B. PARKER, SLAVKO KRALJ, VELI ALKAN, RICHARD R. BOTT, ROBERT DICOSIMO, QIONG CHENG, ELLEN D. SEMKE, SUSAN MARIE HENNESSEY
  • Engineered glucosyltransferases
    Patent number: 11198853
    Abstract: Disclosed herein are glucosyltransferases with modified amino acid sequences. Such engineered enzymes synthesize insoluble alpha-glucan products having decreased molecular weight. Further disclosed are reactions and methods in which engineered glucosyltransferases are used to produce insoluble alpha-glucan.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: December 14, 2021
    Assignee: NUTRITION & BIOSCIENCES USA 4, INC.
    Inventors: Yougen Li, Ellen D. Semke
  • ENGINEERED GLUCOSYLTRANSFERASES
    Publication number: 20210254029
    Abstract: Disclosed herein are glucosyltransferases with modified amino acid sequences. Such engineered enzymes exhibit improved alpha-glucan product yields and/or lower leucrose yields, for example. Further disclosed are reactions and methods in which engineered glucosyltransferases are used to produce alpha-glucan.
    Type: Application
    Filed: December 11, 2020
    Publication date: August 19, 2021
    Inventors: YOUGEN LI, ELLEN D. SEMKE, QIONG CHENG, JIAN PING LAI
  • Engineered glucosyltransferases
    Patent number: 11028373
    Abstract: Disclosed herein are glucosyltransferases with modified amino acid sequences. Such engineered enzymes exhibit improved alpha-glucan product yields and/or lower leucrose yields, for example. Further disclosed are reactions and methods in which engineered glucosyltransferases are used to produce alpha-glucan.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: June 8, 2021
    Assignee: NUTRITION & BIOSCIENCES USA 4, INC.
    Inventors: Yougen Li, Mark S. Payne, Jared B. Parker, Slavko Kralj, Veli Alkan, Richard R. Bott, Robert Dicosimo, Qiong Cheng, Ellen D. Semke, Susan Marie Hennessey
  • Engineered glucosyltransferases
    Patent number: 10865393
    Abstract: Disclosed herein are glucosyltransferases with modified amino acid sequences. Such engineered enzymes exhibit improved alpha-glucan product yields and/or lower leucrose yields, for example. Further disclosed are reactions and methods in which engineered glucosyltransferases are used to produce alpha-glucan.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: December 15, 2020
    Assignee: DUPONT INDUSTRIAL BIOSCIENCES USA, LLC
    Inventors: Yougen Li, Ellen D. Semke, Qiong Cheng, Jian Ping Lai
  • Engineered glucosyltransferases
    Patent number: 10774315
    Abstract: Disclosed herein are glucosyltransferases with modified amino acid sequences. Such engineered enzymes synthesize alpha-glucan products having increased molecular weight. Further disclosed are reactions and methods in which engineered glucosyltransferases are used to produce alpha-glucan.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: September 15, 2020
    Assignee: DUPONT INDUSTRIAL BIOSCIENCES USA, LLC
    Inventors: Yougen Li, Ellen D. Semke, Mark S. Payne, Jared B. Parker, Susan Marie Hennessey, Slavko Kralj, Veli Alkan, Richard Bott
  • ENGINEERED GLUCOSYLTRANSFERASES
    Publication number: 20190292528
    Abstract: Disclosed herein are glucosyltransferases with modified amino acid sequences. Such engineered enzymes exhibit improved alpha-glucan product yields and/or lower leucrose yields, for example. Further disclosed are reactions and methods in which engineered glucosyltransferases are used to produce alpha-glucan.
    Type: Application
    Filed: April 11, 2019
    Publication date: September 26, 2019
    Inventors: Yougen Li, Mark S. Payne, Jared B. Parker, Slavko Kralj, Veli Alkan, Richard R. Bott, Robert Dicosimo, Qiong Cheng, Ellen D. Semke, Susan Marie Hennessey
  • ENGINEERED GLUCOSYLTRANSFERASES
    Publication number: 20190276806
    Abstract: Disclosed herein are glucosyltransferases with modified amino acid sequences. Such engineered enzymes synthesize insoluble alpha-glucan products having decreased molecular weight. Further disclosed are reactions and methods in which engineered glucosyltransferases are used to produce insoluble alpha-glucan.
    Type: Application
    Filed: March 7, 2019
    Publication date: September 12, 2019
    Inventors: Yougen Li, Ellen D. Semke
  • Engineered glucosyltransferases
    Patent number: 10301604
    Abstract: Disclosed herein are glucosyltransferases with modified amino acid sequences. Such engineered enzymes exhibit improved alpha-glucan product yields and/or lower leucrose yields, for example. Further disclosed are reactions and methods in which engineered glucosyltransferases are used to produce alpha-glucan.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: May 28, 2019
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Yougen Li, Mark S. Payne, Jared B. Parker, Slavko Kralj, Veli Alkan, Richard R. Bott, Robert Dicosimo, Qiong Cheng, Ellen D. Semke, Susan Marie Hennessey
  • ENGINEERED GLUCOSYLTRANSFERASES
    Publication number: 20190078062
    Abstract: Disclosed herein are glucosyltransferases with modified amino acid sequences. Such engineered enzymes synthesize alpha-glucan products having increased molecular weight. Further disclosed are reactions and methods in which engineered glucosyltransferases are used to produce alpha-glucan.
    Type: Application
    Filed: September 11, 2018
    Publication date: March 14, 2019
    Inventors: YOUGEN LI, ELLEN D. SEMKE, MARK S. PAYNE, JARED B. PARKER, SUSAN MARIE HENNESSEY, SLAVKO KRALJ, VELI ALKAN, RICHARD BOTT
  • ENGINEERED GLUCOSYLTRANSFERASES
    Publication number: 20190078063
    Abstract: Disclosed herein are glucosyltransferases with modified amino acid sequences. Such engineered enzymes exhibit improved alpha-glucan product yields and/or lower leucrose yields, for example. Further disclosed are reactions and methods in which engineered glucosyltransferases are used to produce alpha-glucan.
    Type: Application
    Filed: September 11, 2018
    Publication date: March 14, 2019
    Inventors: YOUGEN LI, Ellen D. Semke, Qiong Cheng, Jian Ping Lai
  • ENGINEERED GLUCOSYLTRANSFERASES
    Publication number: 20180072998
    Abstract: Disclosed herein are glucosyltransferases with modified amino acid sequences. Such engineered enzymes exhibit improved alpha-glucan product yields and/or lower leucrose yields, for example. Further disclosed are reactions and methods in which engineered glucosyltransferases are used to produce alpha-glucan.
    Type: Application
    Filed: September 13, 2017
    Publication date: March 15, 2018
    Inventors: YOUGEN LI, SUSAN MARIE HENNESSEY, SLAVKO KRALJ, MARK S. PAYNE, VELI ALKAN, QIONG CHENG, ROBERT DICOSIMO, ELLEN D SEMKE, JARED B. PARKER, RICHARD R. BOTT