Patents by Inventor Stephen Mark Ilett

Stephen Mark Ilett 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 conditioning compositions
    Patent number: 6927202
    Abstract: A concentrated, aqueous fabric softening composition comprises (a) an ester-linked quaternary ammonium fabric softening material comprising at least one mono-ester linked component and at least one tri-ester linked component, the material being derived from fatty groups having an iodine value of from 0 to 3 and (b) an ester-linked quaternary ammonium fabric softening material comprising at least one mono-ester linked component and at least one tri-ester linked component, the material being derived from fatty groups having an iodine value of from 20 to 140 wherein the total amount of unsaturated monoester component of material (b) is from 4 to 20% by weight of the total amount of (a) and (b).
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: August 9, 2005
    Assignee: Unilever Home & Personal Care, USA division of Conopco, Inc.
    Inventors: David Stephen Grainger, Stephane Roth, Stephen Mark Ilett, Melinda Walker
  • Fabric conditioning compositions
    Publication number: 20040058848
    Abstract: A concentrated, aqueous fabric softening composition comprises (a) an ester-linked quaternary ammonium fabric softening material comprising at least one mono-ester linked component and at least one tri-ester linked component, the material being derived from fatty groups having an iodine value of from 0 to 3 and (b) an ester-linked quaternary ammonium fabric softening material comprising at least one mono-ester linked component and at least one tri-ester linked component, the material being derived from fatty groups having an iodine value of from 20 to 140 wherein the total amount of unsaturated monoester component of material (b) is from 4 to 20% by weight of the total amount of (a) and (b).
    Type: Application
    Filed: September 19, 2002
    Publication date: March 25, 2004
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: David Stephen Grainger, Stephane Roth, Stephen Mark Ilett, Melinda Walker
  • Fabric conditioning compositions
    Publication number: 20030069158
    Abstract: A fabric conditioning composition comprises (a) from 7.5 to 80% by weight of a ester-linked quaternary ammonium fabric softening material comprising at least one mono-ester linked component and at least one tri-ester linked component, (b) an inorganic electrolyte and a (c) fatty complexing agent wherein the parent fatty acids or fatty acyl compounds from which component (a) is formed have an iodine value of from 0 to 4.
    Type: Application
    Filed: September 9, 2002
    Publication date: April 10, 2003
    Applicant: Unilever Home & Personal Care USA Division of Conopco, Inc.
    Inventor: Stephen Mark Ilett