Patents by Inventor Divaker Kenkare

Divaker Kenkare 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: 6589925
    Abstract: A detergent tablet in order to be readily dispensed from the detergent dispenser of an automatic dishwasher should be of a generally elliptical shape to a modified generally elliptical shape. This is a shape where a cylinder having a rectangular cross-section contained within the tablet shape has a diagonal dimension that is a minimum for such a shape. This is a diagonal of a cross-section along the minor axis of the tablet. This shape can be defined by the equation: ( x a ) p + ( y b ) p = 1 where 2a is the length of the major axis, 2b is the length of the minor axis, and p in an exponent having a value of between about 1.5 to about 25 extending to a shape where the sides disposed along the major axis are parallel and the sides defined by the minor axis have a defined radius.
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: July 8, 2003
    Assignee: Colgate-Palmolive Company
    Inventors: Gary Benjamin Binstock, Bruce Cummings, Divaker Kenkare, Kevin Mark Kinscherf, Steve Mark Phillips
  • Patent number: 6191088
    Abstract: The present invention relates to an automatic dishwashing composition which can be in the form of a tablet which generally comprises an alkali metal phosphate detergent builder salt, an alkali metal carbonate, a dialkali metal disilicate, a nonionic surfactant, an alkali metal metasilicate, a polymer containing sulfonic acid groups, a chlorine bleach compound, a hydrotrope and a clay.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: February 20, 2001
    Assignee: Colgate-Palmolive Co.
    Inventors: Gary Binstock, Bruce Cummings, Divaker Kenkare, Kevin Kinscherf, Steve Phillips
  • Patent number: 6172020
    Abstract: The present invention relates to an automatic dishwashing composition which can be in the form of a tablet which generally comprises a hydrated alkali metal phosphate detergent builder salt, an anhydrous alkali metal phosphate detergent builder salt, an alkali metal carbonate, a dialkali metal disilicate, a nonionic surfactant, a polymer containing sulfonic acid groups, a peroxygen bleach, a peroxygen bleach activator, a protease enzyme, an amylase enzyme, a hydrotrope and a clay.
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: January 9, 2001
    Assignee: Colgate-Palmolive Company
    Inventors: Gary Binstock, Bruce Cummings, Divaker Kenkare, Kevin Kinscherf, Steve Phillips
  • Patent number: 5998345
    Abstract: An automatic dishwashing composition which is in the form of a tablet generally comprises an alkali metal phosphate detergent builder salt, an alkali metal carbonate, a dialkali metal disilicate, a nonionic surfactant, optional a polymer containing sulfonic acid groups, a wax coated chlorine bleach compound, and a hydrotrope.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: December 7, 1999
    Assignee: Colgate Palmolive Company
    Inventors: Philip Gorlin, Steve Phillips, Divaker Kenkare
  • Patent number: 5962387
    Abstract: An automatic dishwashing composition which is in the form of a multilayer table comprises an alkali metal phosphate detergent builder salt, an alkali metal carbonate, a dialkali metal disilicate, a nonionic surfactant, an alkali metal metasilicate, optionally a polymer containing sulfonic acid groups, a wax coated chlorine bleach compound, and a hydrotrope.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: October 5, 1999
    Assignee: Colgate Palmolive Company
    Inventors: Philip Gorlin, Divaker Kenkare
  • Patent number: 5958855
    Abstract: The present invention relates to automatic dishwashing composition which can be in the form of a tablet which comprises an alkali metal phosphate detergent builder salt, an alkali carbonate, a dialkali metal disilicate, a nonionic surfactant, an alkali metal matasilicate polymer containing sulfonic acid groups, a chlorine bleach compound, a hydrotrope and a clay.
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: September 28, 1999
    Assignee: Colgate Palmolive Company
    Inventors: Gary Binstock, Bruce Cummings, Divaker Kenkare, Kevin Kinscherf, Steve Phillips
  • Patent number: 5698507
    Abstract: An automatic dishwashing compositions containing a mixture of an acid resistant protease enzyme and an acid resistant amylase enzyme have been found to be very useful in the removal of protein and carbohydrate soils from dishware at operating temperatures of 100.degree. F. to 140.degree. F.
    Type: Grant
    Filed: September 10, 1996
    Date of Patent: December 16, 1997
    Assignee: Colgate-Palmolive Co.
    Inventors: Philip A. Gorlin, Divaker Kenkare, Steve Phillips
  • Patent number: 5527483
    Abstract: Nonaqueous gelled automatic dishwashing compositions containing a mixture of a protease enzyme and an amylase enzyme have been found to be very useful in the removal of protein and carbohydrate soils from dishware at operating temperatures of 100.degree. F. to 140.degree. F.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: June 18, 1996
    Assignee: Colgate Palmolive Co.
    Inventors: Divaker Kenkare, Nagaraj Dixit, Patrick Durbut
  • Patent number: 5468411
    Abstract: A phosphate-free powdered dishwashing composition containing a mixture of a protease enzyme and an amylase enzymes have been found to be very useful in the cleaning of dishware. The compositions contain nonionic surfactants and a alkali metal silicate and bleaching agent.
    Type: Grant
    Filed: November 5, 1993
    Date of Patent: November 21, 1995
    Assignee: Colgate Palmolive Co.
    Inventors: Nagaraj S. Dixit, Robert D'Ambrogio, Divaker Kenkare, Julien Drapier
  • Patent number: 5427707
    Abstract: The physical stability of liquid gel-like compositions based on thixotropic thickener is greatly improved by incorporating in the composition small amounts, such as 0.1 to 0.2 weight percent of long chain fatty acids and salts thereof. The aqueous compositions containing inorganic builder salts and other functional inorganic salts, chlorine bleach, bleach stable detergent, at least one thixotropic thickener and a fatty acid or alkali metal salt of the fatty acid as a physical stabilizer exhibit a significant increase in apparent viscosity and remain stable against phase separation for an extended period of time. The thixotropic properties can be retained or improved using smaller levels of the thixotropic thickener than in the absence of the physical stabilizer. The stability, chlorine-bleach loss and cleaning ability of the compositions is further improved, when the composition pH is at least 11.2, when added to an aqueous wash both at a concentration of about 10 grams per liter.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: June 27, 1995
    Assignee: Colgate Palmolive Co.
    Inventors: Julien Drapier, Chantal Gallant, Leo Laitem, Marta Delsignore, Makarand Shevade, Rhyta Rounds, Divaker Kenkare, Thomas Davan, Nagaraj S. Dixit
  • Patent number: 5423997
    Abstract: A spray dried phosphate-free ultra concentrated powdered automatic dishwashing detergent composition containing a mixture of protease enzyme and an amylase enzymes have been found to be very useful in the cleaning of dishware. The compositions contain nonionic surfactants, a builder salt system, a zeolite and an alkali metal silicate and optionally bleaching agent and bleaching activator.
    Type: Grant
    Filed: August 26, 1993
    Date of Patent: June 13, 1995
    Assignee: Colgate Palmolive Co.
    Inventors: Fahim U. Ahmed, Divaker Kenkare
  • Patent number: 5252242
    Abstract: Automatic dishwasher detergent composition is formulated as a linear viscoelastic, pseudoplastic, gel-like aqueous product of exceptionally good physical stability, low bottle residue, low cup leakage, and improved cleaning performance, Linear viscoelasticity and pseudoplastic behavior is attributed by incorporation of cross-linked high molecular weight polyacrylic acid type thickener. Potassium to sodium weight ratios of at least 1/1 minimize amount of undissolved solid particles to further contribute to stability and pourability. Control of incorporated air bubbles functions to provide the product with a bulk density of about 1.35 to 1.40 g/cc which roughly corresponds to the density of the liquid phase. Stearic acid or other fatty acid or salt further improve physical stability.
    Type: Grant
    Filed: June 7, 1991
    Date of Patent: October 12, 1993
    Assignee: Colgate-Palmolive Co.
    Inventors: Makarand Shevade, Marta Delsignore, Nagaraj S. Dixit, Divaker Kenkare
  • Patent number: 5246615
    Abstract: An aqueous solution of an alkali metal neutralized polyacrylic acid and an alkali metal detergent builder salt and/or an alkali metal silicate is used as a base stock polymeric solution for the fomulation of an automatic dishwasher detergent composition which is a linear viscoelastic, pseudoplastic, gel-like aqueous product of exceptionally good physical stability, low bottle residue, low cup leakage, and improved cleaning performance. Linear viscoelasticity and pseudoplastic behavior is attributed by incorporation of cross-linked high molecular weight polyacrylic acid type thickener. Potassium to sodium weight ratios of at least 1/1 minimize amount of undissolved solid particles to further contribute to stability and pourability. Control of incorporated air bubbles functions to provide the product with a bulk density of about 1.35 to 1.40 g/cc which roughly corresponds to the density of the liquid phase. Stearic acid or other fatty acid or salt further improved physical stability.
    Type: Grant
    Filed: January 23, 1992
    Date of Patent: September 21, 1993
    Inventors: Roger Broadwell, Makarand Shevade, Divaker Kenkare
  • Patent number: D419261
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: January 18, 2000
    Assignee: Colgate-Palmolive
    Inventors: Gary Benjamin Binstock, Bruce Cummings, Divaker Kenkare, Kevin Mark Kinscherf, Steve Mark Phillips
  • Patent number: D420464
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: February 8, 2000
    Assignee: Colgate-Palmolive Co.
    Inventors: Gary Benjamin Binstock, Bruce Cummings, Divaker Kenkare, Kevin Mark Kinscherf, Steve Mark Phillips
  • Patent number: D422749
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: April 11, 2000
    Assignee: Colgate-Palmolive Company
    Inventors: Gary Benjamin Binstock, Bruce Cummings, Divaker Kenkare, Kevin Mark Kinscherf, Steve Mark Phillips
  • Patent number: D423141
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: April 18, 2000
    Assignee: Colgate-Palmolive Company
    Inventors: Gary Benjamin Binstock, Bruce Cummings, Divaker Kenkare, Kevin Mark Kinscherf, Steve Mark Phillips
  • Patent number: D426020
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: May 30, 2000
    Assignee: Colgate-Palmolive Company
    Inventors: Gary Benjamin Binstock, Bruce Cummings, Divaker Kenkare, Kevin Mark Kinscherf, Steve Mark Phillips
  • Patent number: D428668
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: July 25, 2000
    Inventors: Gary Benjamin Binstock, Bruce Cummings, Divaker Kenkare, Kevin Mark Kinscherf, Steve Mark Phillips