Patents by Inventor Vera Johanna Bakker

Vera Johanna Bakker 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).

  • Particulate laundry detergent composition containing zeolite
    Patent number: 6908895
    Abstract: A particulate zeolite-built laundry detergent composition having a bulk density of at least 550 g/l comprising at least two different granular components containing both surfactant and builder, preferably one prepared by non-tower granulation and another spray-dried, also contains from 1 to 10 wt % citric acid admixed as a separate particulate component. The admixed citric acid improves dispensing and dissolution properties, whether or not separately admixed sodium carbonate is present.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: June 21, 2005
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Vera Johanna Bakker, Arie Krijgsman, Edwin Leo Lempers, Jasper Mol
  • Detergent compositions
    Patent number: 6573231
    Abstract: A particulate laundry detergent composition having a bulk density of 550 to 900 g/l comprises at least two different granular multiingredient components. A first granular component (preferably non-spray-dried) has a bulk density of 550 to 1000 g/l and has a weight ratio of a first ingredient type to a second ingredient type of r; a second granular component (preferably spray-dried) has a bulk density of from 300 to 550 g/l and has a weight ratio of the first ingredient type to the second ingredient type of r′, wherein the ratio of r to r′ is within the range of from 1.25:1 to 1:1.25.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: June 3, 2003
    Assignee: Unilever Home & Personal Care division of Conopco, Inc.
    Inventors: Vera Johanna Bakker, Daniel Pierre Berthod, Christophe Michel Joyeux, Duncan Howard Wright
  • Particulate laundry detergent composition containing zeolite
    Publication number: 20020198134
    Abstract: A particulate zeolite-built laundry detergent composition having a bulk density of at least 550 g/l comprising at least two different granular components containing both surfactant and builder, preferably one prepared by non-tower granulation and another spray-dried, also contains from 1 to 10 wt % citric acid admixed as a separate particulate component. The admixed citric acid improves dispensing and dissolution properties, whether or not separately admixed sodium carbonate is present.
    Type: Application
    Filed: May 14, 2002
    Publication date: December 26, 2002
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Vera Johanna Bakker, Arie Krijgsman, Edwin Leo Lempers, Jasper Mol
  • Detergent compositions
    Publication number: 20010031719
    Abstract: A particulate laundry detergent composition having a bulk density of 550 to 900 g/l comprises at least two different granular multiingredient components. A first granular component (preferably non-spray-dried) has a bulk density of 550 to 1000 g/l and has a weight ratio of a first ingredient type to a second ingredient type of r; a second granular component (preferably spray-dried) has a bulk density of from 300 to 550 g/l and has a weight ratio of the first ingredient type to the second ingredient type of r′, wherein the ratio of r to r′ is within the range of from 1.25:1 to 1:1.25.
    Type: Application
    Filed: March 13, 2001
    Publication date: October 18, 2001
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Vera Johanna Bakker, Daniel Pierre Berthod, Christophe Michel Joyeux, Duncan Howard Wright