Patents by Inventor Helen Lu

Helen Lu 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: 20260159780
    Abstract: Treatment compositions, such as fabric care or dish care compositions, include poly alpha-1,6-glucan ether compounds, which include poly alpha-1,6-glucans substituted with at least one positively charged organic group, the compounds being characterized by, for example, a degree of substitution of about 0.001 to about 3.0, and optionally, where about 3% or more of the backbone glucose monomer units have branches via alpha-1,2- and/or alpha-1,3-glycosidic linkages. Methods related to making and using such compositions.
    Type: Application
    Filed: April 17, 2025
    Publication date: June 11, 2026
    Inventors: Mark Robert SIVIK, Carola BARRERA, Kristine Lynn FLITER, Karel Jozef Maria DEPOOT, Wouter WALRAVENS, Cedric Joseph VOLONT, Claire Rebecca YATES, Julie Ann MENKHAUS, David GOOD, Gang SI, Ruth CHILTON, Michael D. GAGNON, Brandon J. BURKHART, Helen LU, Weiming QIU, Kathleen Mary MCDONOUGH
  • Patent number: 12644206
    Abstract: An alginate-based fiber is made of a composition comprising an alginate, a cellulose and a polyol plasticizer, such as glycerol. The fiber is produced through extrusion in a curing bath containing calcium. The fiber provides excellent strength and flexibility in its unhydrated state for textile applications. The fiber can be used to produce textiles as compostable alternatives to petrochemical based polymers.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: June 2, 2026
    Assignees: The Trustees of Columbia University in the City of New York, Fashion Institute of Technology
    Inventors: Theanna Schiros, Asta Skocir, Aaron Nesser, Tessa Callaghan, Aleksandra Gosiewski, Sebastian Thomas Russell, Dong An, Romare Antrobus, Chris Mosher, Helen Lu
  • Patent number: 12600923
    Abstract: A laundry care or dish care composition can include a poly alpha-1,6-glucan derivative, wherein the poly alpha-1,6-glucan derivative includes: (i) a poly alpha-1,6-glucan backbone of glucose monomer units; and (ii) at least one hydrophobic organic group linked to the poly alpha-1,6-glucan backbone through an ether (—O—) linkage moiety; wherein, the poly alpha-1,6-glucan backbone has a weight average degree of polymerization of at least 5; wherein, the poly alpha-1,6-glucan derivative has a degree of substitution of ether linkage moiety of from 0.20 to 1.00; wherein the poly alpha-1,6-glucan derivative is substantially free from hydrophilic substitution.
    Type: Grant
    Filed: June 20, 2023
    Date of Patent: April 14, 2026
    Assignee: The Procter & Gamble Company
    Inventors: Mark Robert Sivik, Kristine Lynn Fliter, Neil Thomas Fairweather, Gang Si, David Good, Helen Lu, Weiming Qiu
  • Patent number: 12559701
    Abstract: A laundry care or dish care composition can include a poly alpha-1,6-glucan derivative, wherein the poly alpha-1,6-glucan derivative includes: (i) a poly alpha-1,6-glucan backbone of glucose monomer units, wherein greater than or equal to 80% of the glucose monomer units are linked via alpha-1,6 glycosidic linkages, and wherein from about 10% or less of the glucose monomer units are linked via alpha-1,3 glycosidic linkages, 1,2 glycosidic linkages, and/or 1,4 glycosidic linkages; and (ii) at least one organic group linked to the poly alpha-1,6-glucan backbone through a ?linkage moiety; wherein, the poly alpha-1,6-glucan backbone has a weight average degree of polymerization of at least about 5; wherein, the poly alpha-1,6-glucan derivative has a degree of substitution of ?linkage moiety of from about 0.20 to about 1.00.
    Type: Grant
    Filed: March 19, 2024
    Date of Patent: February 24, 2026
    Assignee: The Procter & Gamble Company
    Inventors: Mark Robert Sivik, Kristine Lynn Fliter, Neil Thomas Fairweather, Gang Si, David Good, Zheng-Zheng Huang, Helen Lu, Douglas Adelman
  • Patent number: 12297408
    Abstract: Treatment compositions, such as fabric care or dish care compositions, that include poly alpha-1,6-glucan ether compounds, which include poly alpha-1,6-glucans substituted with at least one positively charged organic group, the compounds being characterized by, for example, a degree of substitution of about 0.001 to about 3.0, and optionally, where about 3% or more of the backbone glucose monomer units have branches via alpha-1,2- and/or alpha-1,3-glycosidic linkages. Methods related to making and using such compositions.
    Type: Grant
    Filed: January 12, 2024
    Date of Patent: May 13, 2025
    Assignee: The Procter & Gamble Company
    Inventors: Mark Robert Sivik, Carola Barrera, Kristine Lynn Fliter, Karel Jozef Maria Depoot, Wouter Walravens, Cedric Joseph Volont, Claire Rebecca Yates, Julie Ann Menkhaus, David Good, Gang Si, Ruth Chilton, Michael D. Gagnon, Brandon J. Burkhart, Helen Lu, Weiming Qiu, Kathleen Mary McDonough
  • Patent number: 12216546
    Abstract: The present technology pertains to restoring a directory to a state prior to a past synchronization event. A content management system can present an interface including history of synchronization events for a directory, and a user can select to restore a directory to a state prior to any one of the past synchronization events.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: February 4, 2025
    Assignee: Dropbox, Inc.
    Inventors: Pranav Vishnu Ramabhadran, Ken Park, Wes O'Haire, Raveesh Nayar, Helen Lu, Grant Mathews, Sam Keller, Niklas Nordlof, Marian Oman, Julia Weingardt
  • Publication number: 20240336880
    Abstract: This disclosure relates to a biodegradable core-shell microcapsule that includes (a) a shell containing the reaction product of an isocyanate-functionalized prepolymer with a crosslinker and optionally a polyelectrolyte under an aqueous condition, and (b) a core containing an active material, wherein the isocyanate-functionalized prepolymer is the reaction product of a polyisocyanate with a biopolymer and/or an amphiphilic compound under an anhydrous condition, and the microcapsule shell is substantially free of or free of a self-condensed polyisocyanate. This disclosure also relates to a process of preparing such biodegradable core-shell microcapsule. This disclosure also relates to a consumer product containing such biodegradable core-shell microcapsule. This disclosure also relates to a process of making the isocyanate-functionalized prepolymer.
    Type: Application
    Filed: January 12, 2023
    Publication date: October 10, 2024
    Inventors: Takashi SASAKI, Jason HACKENBERG, Ryan CHIN, Lewis Michael POPPLEWELL, Ronald GABBARD, Yabin LEI, Sorin Nicolae SAUCA, Timothy YOUNG, Tram TRAN, Helen LU, Min ZHAO, Julie Ann WIELAND
  • Publication number: 20240228911
    Abstract: A laundry care or dish care composition can include a poly alpha-1,6-glucan derivative, wherein the poly alpha-1,6-glucan derivative includes: (i) a poly alpha-1,6-glucan backbone of glucose monomer units, wherein greater than or equal to 80% of the glucose monomer units are linked via alpha-1,6 glycosidic linkages, and wherein from about 10% or less of the glucose monomer units are linked via alpha-1,3 glycosidic linkages, 1,2 glycosidic linkages, and/or 1,4 glycosidic linkages; and (ii) at least one organic group linked to the poly alpha-1,6-glucan backbone through a linkage moiety; wherein, the poly alpha-1,6-glucan backbone has a weight average degree of polymerization of at least about 5; wherein, the poly alpha-1,6-glucan derivative has a degree of substitution of linkage moiety of from about 0.20 to about 1.00.
    Type: Application
    Filed: March 19, 2024
    Publication date: July 11, 2024
    Inventors: Mark Robert SIVIK, Kristine Lynn FLITER, Neil Thomas FAIRWEATHER, Gang SI, David GOOD, Zheng-Zheng HUANG, Helen LU, Douglas ADELMAN
  • Publication number: 20240191156
    Abstract: Treatment compositions, such as fabric care or dish care compositions, that include poly alpha-1,6-glucan ether compounds, which include poly alpha-1,6-glucans substituted with at least one positively charged organic group, the compounds being characterized by, for example, a degree of substitution of about 0.001 to about 3.0, and optionally, where about 3% or more of the backbone glucose monomer units have branches via alpha-1,2- and/or alpha-1,3-glycosidic linkages. Methods related to making and using such compositions.
    Type: Application
    Filed: January 12, 2024
    Publication date: June 13, 2024
    Inventors: Mark Robert SIVIK, Carola BARRERA, Kristine Lynn FLITER, Karel Jozef Maria DEPOOT, Wouter WALRAVENS, Cedric Joseph VOLONT, Claire Rebecca YATES, Julie Ann MENKHAUS, David GOOD, Gang SI, Ruth CHILTON, Michael D. GAGNON, Brandon J. BURKHART, Helen LU, Weiming QIU, Kathleen Mary MCDONOUGH
  • Patent number: 12006489
    Abstract: The disclosure relates to compositions comprising a polysaccharide derivative, wherein the polysaccharide derivative comprises a polysaccharide substituted with a) at least one hydrophobic group, and b) at least one hydrophilic group, wherein the polysaccharide is poly alpha-1,3-glucan, poly alpha-1,6-glucan, or poly alpha-1,3-1,6-glucan.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: June 11, 2024
    Assignee: The Procter & Gamble Company
    Inventors: Zhengzheng Huang, Helen Lu, Weiming Qiu, Mukesh C. Shah, Steven W. Shuey, Mark Robert Sivik, Kristi Lynn Fliter
  • Publication number: 20240141257
    Abstract: The present invention relates to a process for making a water-soluble unit dose article. The present invention also contemplates a process for making a premix.
    Type: Application
    Filed: May 31, 2023
    Publication date: May 2, 2024
    Inventors: Wouter WALRAVENS, Karel Jozef Maria DEPOOT, Mark Robert SIVIK, Antonio QUINTIERI, Kristine Lynn NIEHAUS, Katrien VAN ROEY, Helen LU, Michael D. GAGNON, Ilkka Ilari KRUUS
  • Patent number: 11965147
    Abstract: A laundry care or dish care composition can include a poly alpha-1,6-glucan derivative, wherein the poly alpha-1,6-glucan derivative includes: (i) a poly alpha-1,6-glucan backbone of glucose monomer units, wherein greater than or equal to 40% of the glucose monomer units are linked via alpha-1,6 glycosidic linkages, and wherein from 0% to less than 30% of the glucose monomer units are linked via alpha-1,3 glycosidic linkages, and optionally at least 5% of the backbone glucose monomer units have branches via alpha-1,2 and/or alpha-1,3 glycosidic linkages; and (ii) at least one organic group linked to the poly alpha-1,6-glucan backbone through a linkage moiety; wherein, the poly alpha-1,6-glucan backbone has a weight average degree of polymerization of at least 5; and wherein, the poly alpha-1,6-glucan derivative has a degree of substitution of linkage moiety of from 0.20 to 1.00.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: April 23, 2024
    Assignee: The Procter & Gamble Company
    Inventors: Mark Robert Sivik, Kristine Lynn Fliter, Neil Thomas Fairweather, Gang Si, David Good, Zheng-Zheng Huang, Helen Lu, Douglas Adelman
  • Publication number: 20240126651
    Abstract: The present technology pertains to restoring a directory to a state prior to a past synchronization event. A content management system can present an interface including history of synchronization events for a directory, and a user can select to restore a directory to a state prior to any one of the past synchronization events.
    Type: Application
    Filed: December 20, 2023
    Publication date: April 18, 2024
    Inventors: Pranav Vishnu Ramabhadran, Ken Park, Wes O'Haire, Raveesh Nayar, Helen Lu, Grant Mathews, Sam Keller, Niklas Nordlof, Marian Oman, Julia Weingardt
  • Patent number: 11940877
    Abstract: The present technology pertains to restoring a directory to a state prior to a past synchronization event. A content management system can present an interface including history of synchronization events for a directory, and a user can select to restore a directory to a state prior to any one of the past synchronization events.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: March 26, 2024
    Assignee: Dropbox, Inc.
    Inventors: Pranav Vishnu Ramabhadran, Ken Park, Wes O'Haire, Raveesh Nayar, Helen Lu, Grant Mathews, Sam Keller, Niklas Nordlof, Marian Oman, Julia Weingardt
  • Patent number: 11905495
    Abstract: Treatment compositions, such as fabric care or dish care compositions, that include poly alpha-1,6-glucan ether compounds, which include poly alpha-1,6-glucans substituted with at least one positively charged organic group, the compounds being characterized by, for example, a degree of substitution of about 0.001 to about 3.0, and optionally, where about 3% or more of the backbone glucose monomer units have branches via alpha-1,2- and/or alpha-1,3-glycosidic linkages. Methods related to making and using such compositions.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: February 20, 2024
    Assignee: The Procter & Gamble Company
    Inventors: Mark Robert Sivik, Carola Barrera, Kristine Lynn Fliter, Karel Jozef Maria Depoot, Wouter Walravens, Cedric Joseph Volont, Claire Rebecca Yates, Julie Ann Menkhaus, David Good, Gang Si, Ruth Chilton, Michael D. Gagnon, Brandon J. Burkhart, Helen Lu, Weiming Qiu, Kathleen Mary McDonough
  • Publication number: 20230332073
    Abstract: A laundry care or dish care composition can include a poly alpha-1,6-glucan derivative, wherein the poly alpha-1,6-glucan derivative includes: (i) a poly alpha-1,6-glucan backbone of glucose monomer units; and (ii) at least one hydrophobic organic group linked to the poly alpha-1,6-glucan backbone through an ether (—O—) linkage moiety; wherein, the poly alpha-1,6-glucan backbone has a weight average degree of polymerization of at least 5; wherein, the poly alpha-1,6-glucan derivative has a degree of substitution of ether linkage moiety of from 0.20 to 1.00; wherein the poly alpha-1,6-glucan derivative is substantially free from hydrophilic substitution.
    Type: Application
    Filed: June 20, 2023
    Publication date: October 19, 2023
    Inventors: Mark Robert SIVIK, Kristine Lynn FLITER, Neil Thomas FAIRWEATHER, Gang SI, David GOOD, Helen LU, Weiming QIU
  • Patent number: 11732216
    Abstract: A laundry care or dish care composition can include a poly alpha-1,6-glucan derivative, wherein the poly alpha-1,6-glucan derivative includes: (i) a poly alpha-1,6-glucan backbone of glucose monomer units, wherein greater than or equal to 40% of the glucose monomer units are linked via alpha-1,6 glycosidic linkages, and optionally at least 5% of the backbone glucose monomer units have branches via alpha-1,2 and/or alpha-1,3 glycosidic linkages; and (ii) at least one hydrophobic organic group linked to the poly alpha-1,6-glucan backbone through an ether (—O—) linkage moiety; wherein, the poly alpha-1,6-glucan backbone has a weight average degree of polymerization of at least 5; wherein, the poly alpha-1,6-glucan derivative has a degree of substitution of ether linkage moiety of from 0.20 to 1.00; wherein the poly alpha-1,6-glucan derivative is substantially free from hydrophilic substitution.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: August 22, 2023
    Assignee: The Procter & Gamble Company
    Inventors: Mark Robert Sivik, Kristine Lynn Fliter, Neil Thomas Fairweather, Gang Si, David Good, Helen Lu, Weiming Qiu
  • Publication number: 20230116339
    Abstract: A laundry detergent composition includes: (i) detersive surfactant; and (ii) polyalpha-1,3-glucan compounds.
    Type: Application
    Filed: December 5, 2022
    Publication date: April 13, 2023
    Inventors: Mark Robert SIVIK, Kristine Lynn FLITER, Kathleen Mary MCDONOUGH, Gang SI, David Good, Michael McDonnell, Zheng-Zheng Huang, Helen LU
  • Publication number: 20230116102
    Abstract: A laundry care or dish care composition including a poly alpha glucan derivative, wherein the poly alpha glucan derivative includes: (i) a poly alpha glucan backbone of glucose monomer units, wherein greater than or equal to 40% of the glucose monomer units are linked via alpha-1,3 glycosidic linkages, or a combination of alpha-1,3 and alpha-1,6 glycosidic linkages, and optionally at least 5% of the backbone glucose monomer units have branches via alpha-1,2 glycosidic linkages; and (ii) at least one organic group linked to the poly alpha glucan backbone through a linkage moiety; wherein, the poly alpha glucan backbone has a weight average degree of polymerization of from 51 to 150; and wherein, the poly alpha glucan derivative has a degree of substitution of linkage moiety of from 0.001 to 3.00.
    Type: Application
    Filed: December 5, 2022
    Publication date: April 13, 2023
    Inventors: Mark Robert SIVIK, Kristine Lynn FLITER, Neil Thomas FAIRWEATHER, Gang SI, Zheng-Zheng Huang, Helen Lu, Douglas Adelman
  • Publication number: 20230106704
    Abstract: The composition relates to a laundry care or dish care composition including a poly alpha-1,6-glucan derivative, wherein the poly alpha-1,6-glucan derivative includes: (i) a poly alpha-1,6-glucan backbone of glucose monomer units, wherein greater than or equal to 40% of the glucose monomer units are linked via alpha-1,6 glycosidic linkages, and optionally at least 5% of the backbone glucose monomer units have branches via alpha-1,2 and/or alpha-1,3 glycosidic linkages; and (ii) at least one organic group linked to the poly alpha-1,6-glucan backbone through a carbonate (—OCOO—) linkage moiety; wherein the poly alpha-1,6-glucan backbone has a weight average degree of polymerization of at least 5; and wherein the poly alpha-1,6-glucan derivative has a degree of substitution of carbonate linkage moiety of from 0.20 to 1.00.
    Type: Application
    Filed: December 5, 2022
    Publication date: April 6, 2023
    Inventors: Gang SI, Mark Robert SIVIK, Helen LU