Patents by Inventor Gary Cahill

Gary Cahill 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: 6897194
    Abstract: In a concentrated fabric softening composition comprising an aqueous dispersion of less than 30% by weight of quaternary ammonium fabric softening material which comprises two C12-C22 alkyl or alkenyl groups connected to the molecule via at least one ester link, such as ester quat, improved stability of the viscosity on storage is obtained by including an unsaturated C8-C24 fatty acid, wherein the weight ratio of quaternary ammonium material to unsaturated material is greater than 10:1.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: May 24, 2005
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventors: Shimei Fan, Gary Cahill
  • Fabric conditioning compositions
    Publication number: 20030166486
    Abstract: A fabric conditioning composition comprising a cationic fabric softening compound dispersed in water is found to have surprisingly improved viscosity stability if a stabilising system comprising at least one salt of a multivalent inorganic anion or non-sequestering multivalent organic anion is present. The invention is particularly suitable for use with quaternary ammonium material comprising a compound having two C12-18 alkyl or alkenyl groups connected to the molecule via at least one ester link. Preferably, the mixture comprises sodium chloride and sodium sulphate. Preferably, there is additionally at least one salt of a univalent anion.
    Type: Application
    Filed: November 18, 2002
    Publication date: September 4, 2003
    Inventors: David Machin, Laurent Soubiran, Gary Cahill, Shimei Fan, John Francis Hubbard
  • Fabric conditioning compostions
    Publication number: 20030158068
    Abstract: In a concentrated fabric softening composition comprising an aqueous dispersion of less than 30% by weight of quaternary ammonium fabric softening material which comprises two C12-C22 alkyl or alkenyl groups connected to the molecule via at least one ester link, such as ester quat, improved stability of the viscosity on storage is obtained by including an unsaturated C8-C24 fatty acid, wherein the weight ratio of quaternary ammonium material to unsaturated material is greater than 10:1.
    Type: Application
    Filed: November 18, 2002
    Publication date: August 21, 2003
    Inventors: Shimei Fan, Gary Cahill