Patents by Inventor Duncan Howard Wright

Duncan Howard Wright 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: 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
  • 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