Patents by Inventor Brian S. Hammes

Brian S. Hammes 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: 11542662
    Abstract: Absorbent sheet is manufactured utilizing a low charge density debonder composition comprising an imidazolinium surfactant-containing constituent selected from the group consisting of: (i) cationic imidazolinium surfactants with alkylalkenylhydroxy substitution; (ii) zwitterionic imidazolinium surfactants; and (iii) an ion paired surfactant mixture including a zwitterionic imidazolinium surfactant and a cationic surfactant and, in admixture with the imidazolinium surfactant-containing constituent, (iv) a nonionic surfactant.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: January 3, 2023
    Assignee: GPCP IP Holdings LLC
    Inventors: Yu Chen, Kevin M. Holtman, Brian S. Hammes, Jeffery J. Boettcher
  • Patent number: 11408127
    Abstract: Zwitterionic surfactant compounds and their use in connection with absorbent paper manufacture in debonder and softener formulations. An exemplary surfactant is an imidazolinium compound of formula: wherein X is SO3, R1 is a hydrocarbyl spacer group having a chain length of from 2-6 carbon atoms, R2 is a hydrocarbyl group having from 8 to 22 carbon atoms; and R3 is an alkenylamidoalkyl moiety having from 8 to 30 carbon atoms.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: August 9, 2022
    Assignee: GPCP IP Holdings LLC
    Inventors: Yu Chen, Brian S. Hammes
  • Publication number: 20200283960
    Abstract: Zwitterionic surfactant compounds and their use in connection with absorbent paper manufacture in debonder and softener formulations. An exemplary surfactant is an imidazolinium compound of formula: wherein X is SO3, R1 is a hydrocarbyl spacer group having a chain length of from 2-6 carbon atoms, R2 is a hydrocarbyl group having from 8 to 22 carbon atoms; and R3 is an alkenylamidoalkyl moiety having from 8 to 30 carbon atoms.
    Type: Application
    Filed: May 20, 2020
    Publication date: September 10, 2020
    Inventors: Yu Chen, Brian S. Hammes
  • Patent number: 10697123
    Abstract: Zwitterionic surfactant compounds and their use in connection with absorbent paper manufacture in debonder and softener formulations. An exemplary surfactant is an imidazolinium compound of formula: wherein X is SO3, R1 is a hydrocarbyl spacer group having a chain length of from 2-6 carbon atoms, R2 is a hydrocarbyl group having from 8 to 22 carbon atoms; and R3 is an alkenylamidoalkyl moiety having from 8 to 30 carbon atoms.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: June 30, 2020
    Assignee: GPCP IP Holdings LLC
    Inventors: Yu Chen, Brian S. Hammes
  • Publication number: 20200199819
    Abstract: Absorbent sheet is manufactured utilizing a low charge density debonder composition comprising an imidazolinium surfactant-containing constituent selected from the group consisting of: (i) cationic imidazolinium surfactants with alkylalkenylhydroxy substitution; (ii) zwitterionic imidazolinium surfactants; and (iii) an ion paired surfactant mixture including a zwitterionic imidazolinium surfactant and a cationic surfactant and, in admixture with the imidazolinium surfactant-containing constituent, (iv) a nonionic surfactant.
    Type: Application
    Filed: March 2, 2020
    Publication date: June 25, 2020
    Inventors: Yu Chen, Kevin M. Holtman, Brian S. Hammes, Jeffrey J. Boettcher
  • Patent number: 10669673
    Abstract: Absorbent sheet is manufactured utilizing a low charge density debonder composition comprising an imidazolinium surfactant-containing constituent selected from the group consisting of: (i) cationic imidazolinium surfactants with alkylalkenylhydroxy substitution; (ii) zwitterionic imidazolinium surfactants; and (iii) an ion paired surfactant mixture including a zwitterionic imidazolinium surfactant and a cationic surfactant and, in admixture with the imidazolinium surfactant-containing constituent, (iv) a nonionic surfactant.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: June 2, 2020
    Assignee: GPCP IP Holdings LLC
    Inventors: Yu Chen, Kevin M. Holtman, Brian S. Hammes, Jeffrey J. Boettcher
  • Publication number: 20180202109
    Abstract: Absorbent sheet is manufactured utilizing a low charge density debonder composition comprising an imidazolinium surfactant-containing constituent selected from the group consisting of: (i) cationic imidazolinium surfactants with alkylalkenylhydroxy substitution; (ii) zwitterionic imidazolinium surfactants; and (iii) an ion paired surfactant mixture including a zwitterionic imidazolinium surfactant and a cationic surfactant and, in admixture with the imidazolinium surfactant-containing constituent, (iv) a nonionic surfactant.
    Type: Application
    Filed: January 11, 2018
    Publication date: July 19, 2018
    Inventors: Yu Chen, Kevin M. Holtman, Brian S. Hammes, Jeffrey J. Boettcher
  • Publication number: 20180202108
    Abstract: Zwitterionic surfactant compounds and their use in connection with absorbent paper manufacture in debonder and softener formulations. An exemplary surfactant is an imidazolinium compound of formula: wherein X is SO3, R1 is a hydrocarbyl spacer group having a chain length of from 2-6 carbon atoms, R2 is a hydrocarbyl group having from 8 to 22 carbon atoms; and R3 is an alkenylamidoalkyl moiety having from 8 to 30 carbon atoms.
    Type: Application
    Filed: January 9, 2018
    Publication date: July 19, 2018
    Inventors: Yu Chen, Brian S. Hammes
  • Publication number: 20170121911
    Abstract: A tissue softener comprising a softening agent and a viscosity modifying agent, having a viscosity of at least 100 centipoise (cP), and being substantially water-free.
    Type: Application
    Filed: November 2, 2016
    Publication date: May 4, 2017
    Inventors: Farminder S. Anand, Phuong V. Luu, Taiye Philips Oriaran, David W. White, Dean J. Baumgartner, Greg A. Wendt, Tianyan Hartlep, Cynthia G. Brinkley, Brian S. Hammes