Patents by Inventor Laxmikant Tiwari

Laxmikant Tiwari 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).

  • Patent number: 8585930
    Abstract: A quaternary nitrogen-containing corrosion inhibitor of formula wherein is an aromatic, nitrogen-containing ring of 5 to 14 ring atoms, optionally containing an additional N, O or S ring atom and optionally substituted with one or more alkyl, alkenyl, aryl, arylalkyl, cycloalkyl, amino, aminoalkyl, alkoxy, hydroxylalkyl, or cyano groups, or a mixture thereof; Y is a group of formula —OC(O)R1 or —C(O)R1; L is C1-C10 alkyl, C2-C10 alkenyl or a group of formula —CH2CH(OR2)CH2—; R1 is C8-C20 alkyl or C8-C20 alkenyl; R2 is H or —C(O)R1; R3 and R4 are independently selected from H, alkyl, alkenyl, amino, alkoxy, hydroxylalkyl and cyano; and X is Br, Cl or I is particularly useful for inhibiting corrosion in oil and gas field applications.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: November 19, 2013
    Assignee: Nalco Company
    Inventor: Laxmikant Tiwari
  • Patent number: 8192730
    Abstract: A hair treatment composition for straightening hair. The composition comprises: i) 0.1 to 7.9 wt % of the total formulation of a sugar lactone; and ii) cationic surfactant of formula (1): [N(R1)(R2)(R3)(R4)]+(X)? in which R1, R2, R3, and R4 are independently selected from (a) an aliphatic group of from 1 to 22 carbon atoms, or (b) an aromatic, alkoxy, polyoxyalkylene, alkylamido, hydroxyalkyl, aryl or alkylaryl group having up to 22 carbon atoms; and X is a salt-forming anion selected from halogen, acetate, citrate, lactate, glycolate, phosphate nitrate, sulphate, and alkylsulphate.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: June 5, 2012
    Assignee: Conopco, Inc.
    Inventors: Rebecca Justine Elliott, Anand Ramchandra Mahadeshwar, Brodyck James Lachlan Royles, Laxmikant Tiwari
  • Patent number: 7988954
    Abstract: An aqueous hair treatment composition comprising: a) from 0.01% to 10% by weight of the total composition of beeswax; and b) from 0.01% to 10% by weight of the total composition of a sugar lactone.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: August 2, 2011
    Assignee: Conopco, Inc.
    Inventors: Lalitesh Chandra, Rebecca Justine Elliott, Anand Ramchandra Mahadeshwar, Laxmikant Tiwari
  • Patent number: 7951754
    Abstract: Environmentally friendly compounds for corrosion inhibition and hydrocarbonaceous deposit removal and methods using such compounds are disclosed and claimed. The compounds are derivatives of heterocyclic bis-quaternary molecules having an amido moiety and are applicable to a variety of oil and gas operations.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: May 31, 2011
    Assignee: Nalco Company
    Inventors: Laxmikant Tiwari, G. Richard Meyer, David Horsup
  • Publication number: 20110003992
    Abstract: A quaternary nitrogen-containing corrosion inhibitor of formula wherein is an aromatic, nitrogen-containing ring of 5 to 14 ring atoms, optionally containing an additional N, O or S ring atom and optionally substituted with one or more alkyl, alkenyl, aryl, arylalkyl, cycloalkyl, amino, aminoalkyl, alkoxy, hydroxylalkyl, or cyano groups, or a mixture thereof; Y is a group of formula —OC(O)R1 or —C(O)R1; L is C1-C10 alkyl, C2-C10 alkenyl or a group of formula —CH2CH(OR2)CH2—; R1 is C8-C20 alkyl or C8-C20 alkenyl; R2 is H or —C(O)R1; R3 and R4 are independently selected from H, alkyl, alkenyl, amino, alkoxy, hydroxylalkyl and cyano; and X is Br, Cl or I is particularly useful for inhibiting corrosion in oil and gas field applications.
    Type: Application
    Filed: September 15, 2010
    Publication date: January 6, 2011
    Inventor: Laxmikant Tiwari
  • Patent number: 7790149
    Abstract: The invention provides a rinse off hair treatment composition comprising a salt. The composition is for lengthening and straightening hair.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: September 7, 2010
    Assignee: Conopco, Inc.
    Inventors: Lalitesh Chandra, Janet Cotterall, Laxmikant Tiwari
  • Publication number: 20090149356
    Abstract: Environmentally friendly compounds for corrosion inhibition and hydrocarbonaceous deposit removal and methods using such compounds are disclosed and claimed. The compounds are derivatives of heterocyclic bis-quaternary molecules having an amido moiety and are applicable to a variety of oil and gas operations.
    Type: Application
    Filed: December 7, 2007
    Publication date: June 11, 2009
    Inventors: Laxmikant Tiwari, G. Richard Meyer, David Horsup
  • Publication number: 20080308770
    Abstract: A quaternary nitrogen-containing corrosion inhibitor of formula wherein is an aromatic, nitrogen-containing ring of 5 to 14 ring atoms, optionally containing an additional N, O or S ring atom and optionally substituted with one or more alkyl, alkenyl, aryl, arylalkyl, cycloalkyl, amino, aminoalkyl, alkoxy, hydroxylalkyl, or cyano groups, or a mixture thereof, Y is a group of formula —OC(O)R1 or —C(O)R1; L is C1-C10 alkyl, C2-C10 alkenyl or a group of formula CH2CH(OR2)CH2—; R1 is C8-C20 alkyl or C8-C20 alkenyl; R2 is H or C(O)R1; R3 and R4 are independently selected from H, alkyl, alkenyl, amino, alkoxy, hydroxylalkyl and cyano; and X is Br, Cl or I is particularly useful for inhibiting corrosion in oil and gas field applications.
    Type: Application
    Filed: June 14, 2007
    Publication date: December 18, 2008
    Inventor: Laxmikant Tiwari
  • Publication number: 20080019938
    Abstract: A hair treatment composition for straightening hair. The composition comprises: i) 0.1 to 7.9 wt % of the total formulation of a sugar lactone; and ii) cationic surfactant of formula (1): [N(R1)(R2)(R3)(R4)]+(X)? in which R1, R2, R3, and R4 are independently selected from (a) an aliphatic group of from 1 to 22 carbon atoms, or (b) an aromatic, alkoxy, polyoxyalkylene, alkylamido, hydroxyalkyl, aryl or alkylaryl group having up to 22 carbon atoms; and X is a salt-forming anion selected from halogen, acetate, citrate, lactate, glycolate, phosphate nitrate, sulphate, and alkylsulphate.
    Type: Application
    Filed: February 18, 2005
    Publication date: January 24, 2008
    Inventors: Rebecca Elliott, Anand Mahadeshwar, Brodyck Royles, Laxmikant Tiwari
  • Publication number: 20070298003
    Abstract: An aqueous hair treatment composition comprising: a) from 0.01% to 10% by weight of the total composition of beeswax; and b) from 0.01% to 10% by weight of the total composition of a sugar lactone.
    Type: Application
    Filed: February 11, 2005
    Publication date: December 27, 2007
    Inventors: Lalitesh Chandra, Rebecca Elliott, Anand Mahadeshwar, Laxmikant Tiwari
  • Publication number: 20070028938
    Abstract: The invention relates to a method of lengthening hair comprising the step of applying a non-oxidative composition comprising an a-hydroxy acid and/or its salt and a reducing agent preferably having the following formula:
    Type: Application
    Filed: August 27, 2004
    Publication date: February 8, 2007
    Inventor: Laxmikant Tiwari
  • Publication number: 20070009461
    Abstract: The invention provides a rinse off hair treatment composition comprising a salt. The composition is for lengthening and straightening hair.
    Type: Application
    Filed: July 23, 2004
    Publication date: January 11, 2007
    Inventors: Lalitesh Chandra, Janet Cotterall, Laxmikant Tiwari
  • Patent number: 7012055
    Abstract: Fabric treatment compositions comprising a textile compatible carrier and particles having a layered structure comprising oxygen atoms and silicon and/or phosphorus atoms and comprising organic functional groups which are bonded to silicon and/or phosphorus atoms by direct covalent bonds between the silicon and/or phosphorus atoms and a carbon atom. The functional groups are selected to impart lubricating properties to the particles.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: March 14, 2006
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Paul Hugh Findlay, Joseph Edward Hunter, Laxmikant Tiwari, Nicola Whilton
  • Publication number: 20060040842
    Abstract: Fabric treatment compositions comprising a textile compatible carrier and particles having a layered structure comprising oxygen atoms and silicon and/or phosphorus atoms and comprising organic functional groups which are bonded to silicon and/or phosphorus atoms by direct covalent bonds between the silicon and/or phosphorus atoms and a carbon atom. The functional groups are selected to impart lubricating properties to the particles.
    Type: Application
    Filed: October 25, 2005
    Publication date: February 23, 2006
    Inventors: Paul Findlay, Joseph Hunter, Laxmikant Tiwari, Nicola Whilton
  • Publication number: 20040127392
    Abstract: Fabric treatment compositions comprising a textile compatible carrier and particles having a layered structure comprising oxygen atoms and silicon and/or phosphorus atoms and comprising organic functional groups which are bonded to silicon and/or phosphorus atoms by direct covalent bonds between the silicon and/or phosphorus atoms and a carbon atom.
    Type: Application
    Filed: April 4, 2003
    Publication date: July 1, 2004
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Paul Hugh Findlay, Joseph Edward Hunter, Laxmikant Tiwari, Nicola Whilton