Patents by Inventor Laurence Griffith Thompson

Laurence Griffith Thompson 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).

  • Fabric softening compositions
    Patent number: 6727220
    Abstract: The invention provides a fabric softening composition comprising: i) at least one nonionic fabric, and ii) at least one anionic surfactant, and iii) at least one cationic polymer wherein the particles formed from i), ii) and iii) have a net negative charge and the composition comprises no more than 1% by weight non-polymeric cationic surfactant and/or cationic fabric softening compounds. The compositions give good fabric softening without decreasing absorbency, and deposit well without being detrimentally affected by anionic carry-over from the wash. Also provided is a method of depositing a nonionic fabric softening agent from a fabric softening composition, comprising emulsifying the agent with an anionic surfactant and a cationic polymer or emulsifying the agent with an anionic surfactant and then post-dosing an aqueous solution of a cationic polymer to form a particle having an overall negative charge and treating fabric therewith.
    Type: Grant
    Filed: May 11, 2000
    Date of Patent: April 27, 2004
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: David Stephen Grainger, Andrew Green, Mansur Sultan Mohammadi, Stephane Roth, Laurence Griffith Thompson
  • Polymers for laundry applications
    Patent number: 6554869
    Abstract: A polymer for use in a composition or method of laundry treatment is a copolymer of: (a) one or more anionic monomer units; (b) one or more cationic monomer units; and (c) optionally, one or more uncharged monomer units; wherein, the number ratio of the total of all negative charges on the anionic monomer unit(s) to the total of all positive charges on the cationic monomer unit(s) is from 10:1 to 3:1, especially from 17:3 to 3:1.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: April 29, 2003
    Assignee: Unilever Home & Personal Care USA, a division of Conopco, Inc.
    Inventors: Eric Aubay, Wilfried Blokzijl, Cedric Geffroy, Khalid Mahmood, Laurence Griffith Thompson, John Michael Walsh, Kenneth Wong, Dominic Yeung
  • Polymers for laundry applications
    Publication number: 20020052304
    Abstract: A polymer for use in a composition or method of laundry treatment is a copolymer of:
    Type: Application
    Filed: February 2, 2001
    Publication date: May 2, 2002
    Inventors: Eric Aubay, Wilfried Blokzijl, Cedric Geffroy, Khalid Mahmood, Laurence Griffith Thompson, John Michael Walsh, Kenneth Wong, Dominic Yeung