Patents by Inventor Amy Deming Liu

Amy Deming Liu 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).

  • Publication number: 20240294888
    Abstract: The present disclosure relates to variant lipolytic enzymes, more particularly variant lipolytic enzymes that have improved stability and/or improved hydrolytic activity on a polyester. Such variant lipolytic enzymes find use in the degradation of polyesters, such as polyethylene terephthalate. Also provided are compositions and methods related to such variant lipolytic enzymes.
    Type: Application
    Filed: June 27, 2022
    Publication date: September 5, 2024
    Inventors: CHRISTIAN D ADAMS, LILIA MARIA BABE, AMY DEMING LIU, CHRISTIAN DEGERING, SHOHANA ISLAM, SUSANNE WIELAND
  • Publication number: 20240287417
    Abstract: The present invention relates to cleaning compositions comprising at least one lipolytic enzyme, more particularly at least one lipolytic enzyme that has improved stability and/or improved hydrolytic activity on a polyester. In this respect, the present invention relates to cleaning compositions comprising at least one lipolytic enzyme having polyesterase activity. The cleaning compositions described herein are suitable for use in cleaning processes and include detergent compositions, such as laundry detergent compositions, in particular liquid laundry detergent compositions. The present invention further relates to a method for cleaning textiles and to the use of the cleaning composition according to the invention for removing stains. Furthermore, the invention is directed to the use of a lipolytic enzyme having polyesterase activity to reduce pilling effects and prevent graying in an agent.
    Type: Application
    Filed: June 27, 2022
    Publication date: August 29, 2024
    Inventors: Shohana ISLAM, Christian DEGERING, Susanne WIELAND, Nina MUSSMANN, Hanka SCHROETER, Artem BITKIN, Dorothea KAPITZA, Christian D. ADAMS, Lilia Maria BABE, Amy DEMING LIU
  • Publication number: 20240287418
    Abstract: The present invention relates to cleaning compositions comprising at least one lipolytic enzyme having polyesterase activity and at least one cellulase. The cleaning compositions described herein are suitable for use in cleaning processes and include detergent compositions, such as laundry detergent compositions, in particular liquid laundry detergent compositions. The present invention further relates to a method for cleaning textiles and to the use of the cleaning composition according to the invention for removing stains as well as for reducing pilling effects and/or increasing the anti-graying effect of the cleaning composition. Furthermore, the invention is directed to the use of at least one lipolytic enzyme having polyesterase activity and at least one cellulase for synergistically improving the anti-pilling performance and/or anti-graying performance of a cleaning composition comprising lipolytic enzyme having polyesterase activity and cellulase.
    Type: Application
    Filed: June 27, 2022
    Publication date: August 29, 2024
    Inventors: Shohana ISLAM, Christina ROELEKE, Ramona JASNY, Susanne WIELAND, Christian DEGERING, Laura FALENSKI, Elke SCHAEFER, Hanka SCHROETER, Christian D. ADAMS, Lilia Maria BABE, Amy DEMING LIU
  • Publication number: 20240240115
    Abstract: The present invention relates to cleaning and fabric conditioning compositions comprising at least one lipolytic enzyme having polyesterase activity and at least one additional ingredient. The compositions described herein are suitable for use in cleaning and fabric conditioning processes and include detergent compositions, such as laundry detergent compositions, in particular liquid laundry detergent compositions, and softener compositions. The present invention further relates to a method for cleaning or conditioning textiles and to the use of the cleaning composition according to the invention for improving the thermophysiological properties and/or increasing hydrophilicity of textiles and fabrics as well as the corresponding methods.
    Type: Application
    Filed: June 27, 2022
    Publication date: July 18, 2024
    Inventors: Christina ROELEKE, Shohana ISLAM, Ramona JASNY, Susanne WIELAND, Christian DEGERING, Karin KANIA, Hanka SCHROETER, Martina SEILER, Christian D. ADAMS, Lilia Maria BABE, Amy DEMING LIU
  • Publication number: 20240150738
    Abstract: The present disclosure relates to variant lipolytic enzymes, more particularly variant lipolytic enzymes that have improved stability and/or improved hydrolytic activity on a polyester. Such variant lipolytic enzymes find use in the degradation of polyesters, such as polyethylene terephthalate. Also provided are compositions and methods related to such variant lipolytic enzymes.
    Type: Application
    Filed: March 16, 2022
    Publication date: May 9, 2024
    Inventors: CHRISTIAN D ADAMS, LILIA MARIA BABE, GUO FENG, AMY DEMING LIU
  • Publication number: 20230365947
    Abstract: The present disclosure relates to a method and a composition comprising an esterase for enzymatic surface modification of a polyester. The present disclosure also relates to a method of degradation or hydrolysis of an insoluble plant material.
    Type: Application
    Filed: September 16, 2021
    Publication date: November 16, 2023
    Inventors: FENG GUO, HELONG HAO, BRADLEY KELEMEN, AMY DEMING LIU, KEFENG NI, ZHEN QIAN, ZHONGMEI TANG
  • Publication number: 20230203191
    Abstract: Provided herein, inter alia, are engineered antibodies or antigen-binding fragments thereof that exhibit one or more improved properties relating to manufacturability, thermostability, and/or protease resistance as well as methods for making and using the same.
    Type: Application
    Filed: March 30, 2021
    Publication date: June 29, 2023
    Inventors: David A. ESTELL, Amy Deming LIU, Michael C. MILLER, Jeffrey Wayne MUNOS, Jonathan David PETERSON
  • Publication number: 20230159937
    Abstract: Provided herein, inter alia, are fusion DNA constructs comprising improved protease recognition sequences for expressing and purifying one or more polypeptides of interest as well as methods for producing one or more polypeptides of interest in a recombinant host cell.
    Type: Application
    Filed: March 9, 2020
    Publication date: May 25, 2023
    Inventors: Jimmy CHAN, David A. ESTELL, Amy Deming LIU, Michael C. MILLER, Igor NIKOLAEV
  • Publication number: 20120094851
    Abstract: A method for holding samples for analysis and an apparatus thereof includes a testing plate with a pair of opposing surfaces and a plurality of holes. Each of the holes extends from one of the opposing surfaces to the other one of the opposing surfaces. The holes are arranged in groups, where each group has at least two rows and two columns of holes. The groups are arranged in sets, where each set has at least two rows and two columns of groups. To analyze samples, at least one of the opposing surfaces of the testing plate is immersed in a solution to be analyzed. A portion of the solution enters openings for each of the holes in the immersed opposing surface. Once the holes are filled with solution, the testing plate is removed and is held above a supporting surface. Surface tension holds the solution in each of the holes. The solution in one or more of the holes is then analyzed and the solution in one of these holes is identified for further study.
    Type: Application
    Filed: October 18, 2011
    Publication date: April 19, 2012
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventors: Volker SCHELLENBERGER, Amy Deming Liu
  • Patent number: 7666360
    Abstract: A method for holding samples for analysis and an apparatus thereof includes a testing plate with a pair of opposing surfaces and a plurality of holes. Each of the holes extends from one of the opposing surfaces to the other one of the opposing surfaces. The holes are arranged in groups, where each group has at least two rows and two columns of holes. The groups are arranged in sets, where each set has at least two rows and two columns of groups. To analyze samples, at least one of the opposing surfaces of the testing plate is immersed in a solution to be analyzed. A portion of the solution enters openings for each of the holes in the immersed opposing surface. Once the holes are filled with solution, the testing plate is removed and is held above a supporting surface. Surface tension holds the solution in each of the holes. The solution in one or more of the holes is then analyzed and the solution in one of these holes is identified for further study.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: February 23, 2010
    Assignee: BioTrove, Inc.
    Inventors: Volker Schellenberger, Amy Deming Liu
  • Publication number: 20020192716
    Abstract: A method for holding samples for analysis and an apparatus thereof includes a testing plate with a pair of opposing surfaces and a plurality of holes. Each of the holes extends from one of the opposing surfaces to the other one of the opposing surfaces. The holes are arranged in groups, where each group has at least two rows and two columns of holes. The groups are arranged in sets, where each set has at least two rows and two columns of groups. To analyze samples, at least one of the opposing surfaces of the testing plate is immersed in a solution to be analyzed. A portion of the solution enters openings for each of the holes in the immersed opposing surface. Once the holes are filled with solution, the testing plate is removed and is held above a supporting surface. Surface tension holds the solution in each of the holes. The solution in one or more of the holes is then analyzed and the solution in one of these holes is identified for further study.
    Type: Application
    Filed: August 20, 2002
    Publication date: December 19, 2002
    Inventors: Volker Schellenberger, Amy Deming Liu
  • Patent number: 6436632
    Abstract: A method for holding samples for analysis and an apparatus thereof includes a testing plate with a pair of opposing surfaces and a plurality of holes. Each of the holes extends from one of the opposing surfaces to the other one of the opposing surfaces. The holes are arranged in groups, where each group has at least two rows and two columns of holes. The groups are arranged in sets, where each set has at least two rows and two columns of groups. To analyze samples, at least one of the opposing surfaces of the testing plate is immersed in a solution to be analyzed. A portion of the solution enters openings for each of the holes in the immersed opposing surface. Once the holes are filled with solution, the testing plate is removed and is held above a supporting surface. Surface tension holds the solution in each of the holes. The solution in one or more of the holes is then analyzed and the solution in one of these holes is identified for further study.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: August 20, 2002
    Assignee: Genencor International, Inc.
    Inventors: Volker Schellenberger, Amy Deming Liu
  • Publication number: 20020015994
    Abstract: A method for holding samples for analysis and an apparatus thereof includes a testing plate with a pair of opposing surfaces and a plurality of holes. Each of the holes extends from one of the opposing surfaces to the other one of the opposing surfaces. The holes are arranged in groups, where each group has at least two rows and two columns of holes. The groups are arranged in sets, where each set has at least two rows and two columns of groups. To analyze samples, at least one of the opposing surfaces of the testing plate is immersed in a solution to be analyzed. A portion of the solution enters openings for each of the holes in the immersed opposing surface. Once the holes are filled with solution, the testing plate is removed and is held above a supporting surface. Surface tension holds the solution in each of the holes. The solution in one or more of the holes is then analyzed and the solution in one of these holes is identified for further study.
    Type: Application
    Filed: October 4, 2001
    Publication date: February 7, 2002
    Inventors: Volker Schellenberger, Amy Deming Liu
  • Patent number: 6306578
    Abstract: A method for holding samples for analysis and an apparatus thereof includes a testing plate with a pair of opposing surfaces and a plurality of holes. Each of the holes extends from one of the opposing surfaces to the other one of the opposing surfaces. The holes are arranged in groups, where each group has at least two rows and two columns of holes. The groups are arranged in sets, where each set has at least two rows and two columns of groups. To analyze samples, at least one of the opposing surfaces of the testing plate is immersed in a solution to be analyzed. A portion of the solution enters openings for each of the holes in the immersed opposing surface. Once the holes are filled with solution, the testing plate is removed and is held above a supporting surface. Surface tension holds the solution in each of the holes. The solution in one or more of the holes is then analyzed and the solution in one of these holes is identified for further study.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: October 23, 2001
    Assignee: Genencor International, Inc.
    Inventors: Volker Schellenberger, Amy Deming Liu