Patents by Inventor Andrew Thomas Steel

Andrew Thomas Steel 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).

  • Laundry treatment compositions containing a fabric softener and a blue or violet dye
    Patent number: 7833958
    Abstract: A laundry treatment composition which comprises a surfactant and from 0.0001 to 0.1 wt % of a combination of dyes which together have a visual effect on the human eye as a single dye having a peak absorption wavelength on cotton of from 540 nm to 650 nm, preferably from 570 mn to 630 mn, the combination comprising a photostable dye which is substantive to cotton.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: November 16, 2010
    Assignee: Conopco, Inc.
    Inventors: Danielle Santinho Barbizan, Stephen Norman Batchelor, Lisanne Beatriz Grigolon, Andrea Dias Sorze, Andrew Thomas Steel
  • LAUNDRY TREATMENT COMPOSITIONS
    Publication number: 20090264335
    Abstract: A laundry treatment composition which comprises a surfactant and from 0.0001 to 0.1 wt % of a combination of dyes which together have a visual effect on the human eye as a single dye having a peak absorption wavelength on cotton of from 540 nm to 650 nm, preferably from 570 nm to 630 nm, the combination comprising a photostable dye which is substantive to cotton.
    Type: Application
    Filed: July 1, 2009
    Publication date: October 22, 2009
    Applicant: CONOPCO INC., D/B/A UNILEVER
    Inventors: Danielle Santinho BARBIZAN, Stephen Norman BATCHELOR, Lisanne Beatriz GRIGOLON, Andrea Dias SORZE, Andrew Thomas STEEL
  • Laundry treatment compositions containing a photostable dye
    Patent number: 7569531
    Abstract: A laundry treatment composition which comprises a surfactant and from 0.0001 to 0.1 wt % of a combination of dyes which together have a visual effect on the human eye as a single dye having a peak absorption wavelength on cotton of from 540 nm to 650 nm, preferably from 570 mn to 630 mn, the combination comprising a photostable dye which is substantive to cotton.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: August 4, 2009
    Assignee: Conopco Inc.
    Inventors: Danielle Santinho Barbizan, Stephen Norman Batchelor, Lisanne Beatriz Grigolon, Andrea Dias Sorze, Andrew Thomas Steel
  • Detergent compositions
    Publication number: 20040127388
    Abstract: A particulate laundry detergent composition having an equilibrium relative humidity value at 25° C. and 1 atmosphere of at least 10% and comprising an effervescent granule, the effervescent granule comprising an acid source, a carbonate source and a desiccant is provided. The granules are stable even though they are contained within a humid environment.
    Type: Application
    Filed: September 17, 2003
    Publication date: July 1, 2004
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Mario Jovelino Del Nunzio, Paulo Cesar Puelle Andrade, Andrew Thomas Steel
  • Detergent compositions
    Publication number: 20040058842
    Abstract: A particulate laundry detergent composition comprising effervescent granules, at a level of from 0.1 to less than 2 wt %, the effervescent granules comprising (a) from 20 to 80 wt % of an acid source and (b) from 20 to 80 wt % of a carbonate source is provided. Surprisingly the effervescent granules provide dispensing benefits at very low concentration levels.
    Type: Application
    Filed: September 15, 2003
    Publication date: March 25, 2004
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Mario Jovelino Nunzio, Del, Paulo Cesar Puelle Andrade, Andrew Thomas Steel
  • Detergent compositions
    Publication number: 20040058843
    Abstract: An effervescent granule for use in particulate detergent compositions characterised in that it comprises an acid source, a carbonate source and solid surfactant particles is provided.
    Type: Application
    Filed: September 17, 2003
    Publication date: March 25, 2004
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Mario Jovelino Del Nunzio, Paulo Cesar Puelle Andrade, Andrew Thomas Steel
  • Detergent Compositions
    Publication number: 20040058841
    Abstract: An effervescent granule for use in particulate detergent compositions which comprises (a) a particulate acid source; and (b) a particulate carbonate source characterised in that the ratio of the d50 particle size of the acid source to the carbonate source is from less than 2:1 to greater than 1:1 is provided. The granules are surprisingly more effective if the particle sizes of the reacting constituents are similar.
    Type: Application
    Filed: September 15, 2003
    Publication date: March 25, 2004
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Mario Jovelino Nunzio, Del, Paulo Cesar Puelle Andrade, Andrew Thomas Steel