Patents by Inventor Dongmei Ren

Dongmei Ren 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: 11634698
    Abstract: Disclosed herein are polypeptides having nuclease activity. Some of the polypeptides having nuclease activity were generated by an improved gene site mutagenesis (“GSSM”) method or the tailored multi-site combinatorial assembly (“TMCA”) method. Also disclosed are compositions and kits comprising the polypeptides having nuclease activity, and methods for making and using these polypeptides, compositions and kits.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: April 25, 2023
    Assignee: BASF SE
    Inventors: Xuqiu Tan, Kenneth Barrett, Jared Dennis, Dongmei Ren, Corey Dodge, Bin Zhang
  • Publication number: 20210139871
    Abstract: Disclosed herein are polypeptides having nuclease activity. Some of the polypeptides having nuclease activity were generated by an improved gene site mutagenesis (“GSSM”) method or the tailored multi-site combinatorial assembly (“TMCA”) method. Also disclosed are compositions and kits comprising the polypeptides having nuclease activity, and methods for making and using these polypeptides, compositions and kits.
    Type: Application
    Filed: December 10, 2018
    Publication date: May 13, 2021
    Inventors: Xuqiu TAN, Kenneth BARRETT, Jared DENNIS, Dongmei REN, Corey DODGE, Bin ZHANG
  • Publication number: 20200115609
    Abstract: The present disclosure relates to enzyme formulations and methods of using the enzyme formulations to reduce the viscosity of fluids used in hydrocarbon recovery. Some embodiments provide particles for well treatment, where the particles comprise an acidifier carrier and an enzyme co-encapsulated within a shell. The particles can, for example, allow a delayed or controlled release of the enzyme in a high temperature, high pressure environment.
    Type: Application
    Filed: December 23, 2019
    Publication date: April 16, 2020
    Inventors: Cristina POP, Adrienne HUSTON DAVENPORT, Yun HAN, Michael John PRATT, Kelvin Ning WONG, Bin ZHANG, Dongmei REN
  • Publication number: 20180127633
    Abstract: The present disclosure relates to microcapsules with shell and a core with an average particle size of the microcapsules in the range from 0.5 to 20 ?m, wherein the shell is a polyester and wherein the core material comprises an enzyme, a method of making the microcapsules and methods of using the microcapsules in the field of recovery of hydrocarbons from a subterranean formation.
    Type: Application
    Filed: April 25, 2016
    Publication date: May 10, 2018
    Inventors: Ewelina BURAKOWSKA-MEISE, Patrick LEIBACH, Yun HAN, Dongmei REN
  • Publication number: 20170204316
    Abstract: The present disclosure relates to enzyme formulations and methods of using the enzyme formulations to reduce the viscosity of fluids used in hydrocarbon recovery. Some embodiments provide particles for well treatment, where the particles comprise an acidifier carrier and an enzyme co-encapsulated within a shell. The particles can, for example, allow a delayed or controlled release of the enzyme in a high temperature, high pressure environment.
    Type: Application
    Filed: September 15, 2014
    Publication date: July 20, 2017
    Inventors: Cristina POP, Adrienne Huston DAVENPORT, Yun HAN, Michael John PRATT, Kelvin Ning WONG, Bin ZHANG, Dongmei REN
  • Patent number: 8930303
    Abstract: According to a present invention embodiment, a system determines a relationship between source and target database tables, and includes a computer system including at least one processor. Potential pivot keys of the target database table are determined, and maps are created for each potential pivot key between the database tables based on distinct values. Transformations for each map are generated that enable target data to be produced from source data. The transformations for each potential pivot key are analyzed and the potential pivot key with the transformations that generate the greatest amount of matching data is selected as the resulting pivot key. The database table columns corresponding to the resulting pivot key are determined to be associated by the relationship. Embodiments of the present invention further include a method and computer program product for determining a relationship between source and target database tables in substantially the same manner described above.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: January 6, 2015
    Assignee: International Business Machines Corporation
    Inventors: Leon Burda, Salil Datta, Alexander Gorelik, Dongmei Ren, Lev M. Tsentsiper
  • Publication number: 20130262525
    Abstract: According to a present invention embodiment, a system determines a relationship between source and target database tables, and includes a computer system including at least one processor. Potential pivot keys of the target database table are determined, and maps are created for each potential pivot key between the database tables based on distinct values. Transformations for each map are generated that enable target data to be produced from source data. The transformations for each potential pivot key are analyzed and the potential pivot key with the transformations that generate the greatest amount of matching data is selected as the resulting pivot key. The database table columns corresponding to the resulting pivot key are determined to be associated by the relationship. Embodiments of the present invention further include a method and computer program product for determining a relationship between source and target database tables in substantially the same manner described above.
    Type: Application
    Filed: March 30, 2012
    Publication date: October 3, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Leon Burda, Salil Datta, Alexander Gorelik, Dongmei Ren, Lev M. Tsentsiper