Patents by Inventor Amrat Paul Singh

Amrat Paul Singh 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: 6759380
    Abstract: A built laundry detergent composition contains a combination of anionic, nonionic and cationic surfactants which includes a highly ethoxylated nonionic surfactant which is a C8-C16 alcohol ethoxylated with an average of from 20 to 50 ethylene oxide groups. The cationic surfactant may advantageously be an ethoxylated quaternary ammonium compound. The composition exhibits improved oily soil detergency.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: July 6, 2004
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventors: Amrat Paul Singh, David Christopher Thorley
  • Detergent compositions comprising an ethoxylated alcohol and alkyl ioenzene sulfonate
    Patent number: 6720298
    Abstract: A built laundry detergent composition contains anionic surfactant in combination with a minor amount of a highly ethoxylated nonionic surfactant which is a C8-C16 alcohol ethoxylated with an average of from 20 to 50 ethylene oxide groups. The composition exhibits improved oily soil detergency especially under hard water conditions.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: April 13, 2004
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Sandra Ann Blything, Amrat Paul Singh, Thelma Christine Titley
  • DETERGENT COMPOSITIONS
    Publication number: 20040058835
    Abstract: A built laundry detergent composition contains a combination of anionic, nonionic and cationic surfactants which includes a highly ethoxylated nonionic surfactant which is a C8-C16 alcohol ethoxylated with an average of from 20 to 50 ethylene oxide groups. The cationic surfactant may advantageously be an ethoxylated quaternary ammonium compound. The composition exhibits improved oily soil detergency.
    Type: Application
    Filed: September 12, 2003
    Publication date: March 25, 2004
    Applicant: Unilever Home & Personal Care, USA; Division of Conopco, Inc.
    Inventors: Amrat Paul Singh, David Christopher Thorley
  • Detergent compositions
    Patent number: 6689735
    Abstract: A built laundry detergent composition contains a combination of anionic, nonionic and cationic surfactants which includes a highly ethoxylated nonionic surfactant which is a C8-C16 alcohol ethoxylated with an average of from 20 to 50 ethylene oxide groups. The cationic surfactant may advantageously be an ethoxylated quaternary ammonium compound. The composition exhibits improved oily soil detergency.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: February 10, 2004
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Amrat Paul Singh, David Christopher Thorley
  • Detergent compositions
    Patent number: 6608016
    Abstract: Laundry detergent compositions contain a sulphate or sulphonate anionic surfactant and a defined cationic surfactant in a weight ratio of 1:1 to 99:1. The cationic surfactant is a quaternary ammonium salt containing an ethoxylated alkyl chain. The compositions exhibit enhanced removal of oily soil.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: August 19, 2003
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventor: Amrat Paul Singh
  • Detergent compositions
    Publication number: 20030109409
    Abstract: Laundry detergent compositions contain a sulphate or sulphonate anionic surfactant and a defined cationic surfactant in a weight ratio of 1:1 to 99:1. The cationic surfactant is a quaternary ammonium salt containing an ethoxylated alkyl chain. The compositions exhibit enhanced removal of oily soil.
    Type: Application
    Filed: October 15, 2002
    Publication date: June 12, 2003
    Applicant: Unilever Home and Personal Care, Division of Conopco, Inc.
    Inventor: Amrat Paul Singh
  • Detergent compositions
    Patent number: 6555513
    Abstract: Laundry detergent compositions contain a sulphate or sulphonate anionic surfactant and a defined cationic surfactant in a weight ratio of 1:1 to 99:1. The cationic surfactant is a quaternary ammonium salt containing an ethoxylated alkyl chain. The compositions exhibit enhanced removal of oily soil.
    Type: Grant
    Filed: February 7, 2001
    Date of Patent: April 29, 2003
    Assignee: Unilever Home & Personal Care USA division of Conopco Inc.
    Inventor: Amrat Paul Singh
  • Detergent compositions
    Publication number: 20020160929
    Abstract: A built laundry detergent composition contains a combination of anionic, nonionic and cationic surfactants which includes a highly ethoxylated nonionic surfactant which is a C8-C16 alcohol ethoxylated with an average of from 20 to 50 ethylene oxide groups. The cationic surfactant may advantageously be an ethoxylated quaternary ammonium compound. The composition exhibits improved oily soil detergency.
    Type: Application
    Filed: December 11, 2001
    Publication date: October 31, 2002
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Amrat Paul Singh, David Christopher Thorley
  • Detergent compositions
    Publication number: 20020137656
    Abstract: A built laundry detergent composition contains anionic surfactant in combination with a minor amount of a highly ethoxylated nonionic surfactant which is a C8-C16 alcohol ethoxylated with an average of from 20 to 50 ethylene oxide groups. The composition exhibits improved oily soil detergency especially under hard water conditions.
    Type: Application
    Filed: December 11, 2001
    Publication date: September 26, 2002
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Sandra Ann Blything, Amrat Paul Singh, Thelma Christine Titley
  • Detergent compositions containing a cationic detergent and builder
    Patent number: 6395696
    Abstract: A built laundry detergent composition containing cationic detergent surfactant also contains from 0.05 to 5 wt % of iminodisuccinate (IDS) or hydroxyiminodisuccinate (HIDS). The composition provides improved moil and stain removal in conjunction with reduced dye fading of coloured fabrics.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: May 28, 2002
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Timothy David Finch, Amrat Paul Singh
  • Detergent compositions
    Publication number: 20020004475
    Abstract: A built laundry detergent composition containing cationic detergent surfactant also contains from O.05 to 5 wt % of iminodisuccinate (IDS) or hydroxyiminodisuccinate (HIDS). The composition provides improved moil and stain removal in conjunction with reduced dye fading of coloured fabrics.
    Type: Application
    Filed: June 1, 2001
    Publication date: January 10, 2002
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Timothy David Finch, Amrat Paul Singh
  • Detergent compositions
    Publication number: 20010031716
    Abstract: Laundry detergent compositions giving improved oily soil detergency in the machine wash, especially on knitted cotton and knitted polyviscose fabrics, contain an anionic sulphonate surfactant and a zwitterionic betaine surfactant in a weight ratio of 2:1 to 99:1, preferably 3:1 to 25:1. The preferred anionic surfactant is linear alkylbenzene sulphonate and the preferred betaine surfactant is cocoamidopropyl betaine.
    Type: Application
    Filed: February 7, 2001
    Publication date: October 18, 2001
    Inventors: Gary Alan Grant, Amrat Paul Singh
  • Detergent compositions
    Publication number: 20010018409
    Abstract: Laundry detergent compositions contain a sulphate or sulphonate anionic surfactant and a defined cationic surfactant in a weight ratio of 1:1 to 99:1. The cationic surfactant is a quaternary ammonium salt containing an ethoxylated alkyl chain. The compositions exhibit enhanced removal of oily soil.
    Type: Application
    Filed: February 7, 2001
    Publication date: August 30, 2001
    Inventor: Amrat Paul Singh