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).
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Patent number: 6589925Abstract: 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: GrantFiled: March 20, 1998Date of Patent: July 8, 2003Assignee: Colgate-Palmolive CompanyInventors: Gary Benjamin Binstock, Bruce Cummings, Divaker Kenkare, Kevin Mark Kinscherf, Steve Mark Phillips
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Patent number: 6191088Abstract: 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: GrantFiled: June 1, 1999Date of Patent: February 20, 2001Assignee: Colgate-Palmolive Co.Inventors: Gary Binstock, Bruce Cummings, Divaker Kenkare, Kevin Kinscherf, Steve Phillips
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Patent number: 6172020Abstract: 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: GrantFiled: February 3, 1999Date of Patent: January 9, 2001Assignee: Colgate-Palmolive CompanyInventors: Gary Binstock, Bruce Cummings, Divaker Kenkare, Kevin Kinscherf, Steve Phillips
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Patent number: 5998345Abstract: 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: GrantFiled: March 25, 1999Date of Patent: December 7, 1999Assignee: Colgate Palmolive CompanyInventors: Philip Gorlin, Steve Phillips, Divaker Kenkare
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Patent number: 5962387Abstract: 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: GrantFiled: October 16, 1998Date of Patent: October 5, 1999Assignee: Colgate Palmolive CompanyInventors: Philip Gorlin, Divaker Kenkare
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Patent number: 5958855Abstract: 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: GrantFiled: March 20, 1998Date of Patent: September 28, 1999Assignee: Colgate Palmolive CompanyInventors: Gary Binstock, Bruce Cummings, Divaker Kenkare, Kevin Kinscherf, Steve Phillips
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Patent number: 5698507Abstract: 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: GrantFiled: September 10, 1996Date of Patent: December 16, 1997Assignee: Colgate-Palmolive Co.Inventors: Philip A. Gorlin, Divaker Kenkare, Steve Phillips
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Patent number: 5527483Abstract: 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: GrantFiled: March 31, 1994Date of Patent: June 18, 1996Assignee: Colgate Palmolive Co.Inventors: Divaker Kenkare, Nagaraj Dixit, Patrick Durbut
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Patent number: 5468411Abstract: 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: GrantFiled: November 5, 1993Date of Patent: November 21, 1995Assignee: Colgate Palmolive Co.Inventors: Nagaraj S. Dixit, Robert D'Ambrogio, Divaker Kenkare, Julien Drapier
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Patent number: 5427707Abstract: 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: GrantFiled: June 22, 1994Date of Patent: June 27, 1995Assignee: Colgate Palmolive Co.Inventors: Julien Drapier, Chantal Gallant, Leo Laitem, Marta Delsignore, Makarand Shevade, Rhyta Rounds, Divaker Kenkare, Thomas Davan, Nagaraj S. Dixit
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Patent number: 5423997Abstract: 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: GrantFiled: August 26, 1993Date of Patent: June 13, 1995Assignee: Colgate Palmolive Co.Inventors: Fahim U. Ahmed, Divaker Kenkare
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Patent number: 5252242Abstract: 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: GrantFiled: June 7, 1991Date of Patent: October 12, 1993Assignee: Colgate-Palmolive Co.Inventors: Makarand Shevade, Marta Delsignore, Nagaraj S. Dixit, Divaker Kenkare
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Patent number: 5246615Abstract: 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: GrantFiled: January 23, 1992Date of Patent: September 21, 1993Inventors: Roger Broadwell, Makarand Shevade, Divaker Kenkare
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Patent number: D419261Type: GrantFiled: March 20, 1998Date of Patent: January 18, 2000Assignee: Colgate-PalmoliveInventors: Gary Benjamin Binstock, Bruce Cummings, Divaker Kenkare, Kevin Mark Kinscherf, Steve Mark Phillips
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Patent number: D420464Type: GrantFiled: March 20, 1998Date of Patent: February 8, 2000Assignee: Colgate-Palmolive Co.Inventors: Gary Benjamin Binstock, Bruce Cummings, Divaker Kenkare, Kevin Mark Kinscherf, Steve Mark Phillips
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Patent number: D422749Type: GrantFiled: March 20, 1998Date of Patent: April 11, 2000Assignee: Colgate-Palmolive CompanyInventors: Gary Benjamin Binstock, Bruce Cummings, Divaker Kenkare, Kevin Mark Kinscherf, Steve Mark Phillips
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Patent number: D423141Type: GrantFiled: March 20, 1998Date of Patent: April 18, 2000Assignee: Colgate-Palmolive CompanyInventors: Gary Benjamin Binstock, Bruce Cummings, Divaker Kenkare, Kevin Mark Kinscherf, Steve Mark Phillips
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Patent number: D426020Type: GrantFiled: March 20, 1998Date of Patent: May 30, 2000Assignee: Colgate-Palmolive CompanyInventors: Gary Benjamin Binstock, Bruce Cummings, Divaker Kenkare, Kevin Mark Kinscherf, Steve Mark Phillips
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Patent number: D428668Type: GrantFiled: September 23, 1999Date of Patent: July 25, 2000Inventors: Gary Benjamin Binstock, Bruce Cummings, Divaker Kenkare, Kevin Mark Kinscherf, Steve Mark Phillips