Patents by Inventor Wiebe Schokker

Wiebe Schokker 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).

  • Detergent compositions
    Patent number: 6936577
    Abstract: A particulate laundry detergent composition which comprises a detergent base powder comprising surfactant and builder and, as separate particulate components: (a) an alkali metal carbonate salt selected from carbonate, bicarbonate, sesquicarbonate and combinations thereof; and (b) a water-soluble organic acid which, when reacted with (a) in the presence of water, generates carbon dioxide gas; wherein the alkali metal carbonate salt, when taken separately, has a 90% dissolution time of less than 15 seconds, preferably less than 10 seconds, more preferably less than 7 seconds; and the water-soluble organic acid has a d50 particle size which is in the range of from 150 to 1500 microns. The alkali metal carbonate salt preferably has an average bulk density of at most 1000 g/l, preferably at most 800 g/l, more preferably at most 600 g/l. The alkali metal carbonate salt preferably has a d50 particle size of at most 250 microns, preferably from 1 to 200 microns, more preferably from 10 to 150 microns.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: August 30, 2005
    Assignee: Unilever Home Products and Care USA, division of Conopco, Inc.
    Inventors: Prasanna Rao Dontula, Alyn James Parry, Catherine Maria Powell, Karen Robinson, Wiebe Schokker, Gilbert Martin Verschelling, Pieter Broer van der Weg
  • Detergent compostitions
    Publication number: 20030130157
    Abstract: A particulate laundry detergent composition which comprises a detergent base powder comprising surfactant and builder and, as separate particulate components:
    Type: Application
    Filed: October 17, 2002
    Publication date: July 10, 2003
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Prasanna Rao Dontula, Alyn James Parry, Catherine Maria Powell, Karen Robinson, Wiebe Schokker, Gilbert Martin Verschelling, Pieter Broer van der Weg
  • Detergent compositions
    Publication number: 20030130156
    Abstract: A particulate laundry detergent composition which comprises, as separate particulate components:
    Type: Application
    Filed: October 17, 2002
    Publication date: July 10, 2003
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Prasanna Rao Dontula, Alyn James Parry, Catherine Maria Powell, Karen Robinson, Wiebe Schokker, Gilbert Martin Verschelling, Pieter Broer van der Weg
  • Detergent compositions
    Publication number: 20030114347
    Abstract: A particulate laundry detergent composition which comprises, as separate particulate components:
    Type: Application
    Filed: October 17, 2002
    Publication date: June 19, 2003
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Prasanna Rao Dontula, Alyn James Parry, Catherine Maria Powell, Karen Robinson, Wiebe Schokker, Gilbert Martin Verschelling, Pieter Broer van der Weg