Patents by Inventor Karunakaran Narasimhan

Karunakaran Narasimhan 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).

  • Publication number: 20220127546
    Abstract: Improved processes for making glyceride oligomers are generally disclosed herein. In some embodiments, the disclosed processes provide improved methods of using olefin metathesis to oligomerize unsaturated glycerides to make novel branched-chain polyester compositions. In some aspects, the disclosure also provides compositions formed by such processes.
    Type: Application
    Filed: February 19, 2020
    Publication date: April 28, 2022
    Inventors: Karunakaran Narasimhan, Alyssa Catherine Hotalen, Neil Thomas Fairweather, Luke Andrew Zannoni, Beth Annn Schubert, Andrea Dannenberg, Steven A. Cohen
  • Publication number: 20210268439
    Abstract: A method of removing chemical contaminants from a composition comprising an active, a solvent, and a contaminant can include providing an initial feed supply, wherein the initial feed supply comprises the active, the solvent, and the contaminant, wherein the contaminant can include 1,4 dioxane, dimethyl dioxane, or a combination thereof; including filtering the initial feed stock through a nanofilter and using reverse osmosis.
    Type: Application
    Filed: February 25, 2021
    Publication date: September 2, 2021
    Inventors: Justin Thomas Lydon HEDIN, Fabrizio MELI, Karunakaran NARASIMHAN
  • Publication number: 20200353113
    Abstract: Freshening composition having at least 85% by weight of the freshening composition of water; at least 0.0015% of by weight of the freshening composition of alkoxylated phenol; and a perfume having at least 60% by weight of the perfume, Perfume Raw Materials having ClogP greater than 1.0. The alkoxylated phenol is according to Formula (I): wherein a is a value selected from 3 to 15; b is a value selected from 0 to 12; wherein the value of a+b, the degree of alkoxylation is from 3 to 15.
    Type: Application
    Filed: May 1, 2020
    Publication date: November 12, 2020
    Inventors: Michael David O'Young MUI, Kevin Lee KOTT, Jennifer Lea RINKER, Bonny Kay LUI, Gregory Scot MIRACLE, Karunakaran NARASIMHAN, George Kavin MORGAN, III, David Wesley BROGDEN, Jennifer Beth ALLISON, Andrea C. KEENAN, Daniel S. MILLER, Theodore TYSAK, Raymond SCHILL
  • Publication number: 20200270546
    Abstract: Fabric care compositions that include certain glyceride polymers, particularly those obtainable by certain processes, such as using olefin metathesis to oligomerize unsaturated glycerides. Processes of making and using such compositions, including processes of treating a fabric with such compositions.
    Type: Application
    Filed: February 14, 2020
    Publication date: August 27, 2020
    Inventors: Karunakaran NARASIMHAN, Alyssa Catherine HOTALEN, Neil Thomas FAIRWEATHER, Luke Andrew ZANNONI, Beth Ann SCHUBERT, Andrea DANNENBERG
  • Patent number: 10370316
    Abstract: The present invention relates generally to narrow range alcohol alkoxylates and derivatives thereof, such as alkyl ether sulfates.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: August 6, 2019
    Assignee: The Procter & Gamble Company
    Inventors: Karunakaran Narasimhan, Manuel G Venegas, Saurabh Mathur, Ralf Lange, Muhammad Sofian bin Asi Sihombing
  • Publication number: 20190023635
    Abstract: The present invention relates generally to narrow range alcohol alkoxylates and derivatives thereof, such as alkyl ether sulfates.
    Type: Application
    Filed: September 24, 2018
    Publication date: January 24, 2019
    Inventors: Karunakaran NARASIMHAN, Manuel G VENEGAS, Saurabh MATHUR, Ralf LANGE, Muhammad Sofian bin ASI SIHOMBING
  • Patent number: 10099984
    Abstract: The present invention relates generally to narrow range alcohol alkoxylates and derivatives thereof, such as alkyl ether sulfates.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: October 16, 2018
    Assignee: The Procter & Gamble Company
    Inventors: Karunakaran Narasimhan, Manuel G Venegas, Saurabh Mathur, Ralf Lange, Muhammad Sofian bin Asi Sihombing
  • Patent number: 10099983
    Abstract: The present invention relates generally to narrow range alcohol alkoxylates and derivatives thereof, such as alkyl ether sulfates.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: October 16, 2018
    Assignee: The Procter & Gamble Company
    Inventors: Karunakaran Narasimhan, Manuel G Venegas, Saurabh Mathur, Ralf Lange, Muhammad Sofian bin Asi Sihombing
  • Publication number: 20180044273
    Abstract: The present invention relates generally to narrow range alcohol alkoxylates and derivatives thereof, such as alkyl ether sulfates.
    Type: Application
    Filed: October 24, 2017
    Publication date: February 15, 2018
    Inventors: Karunakaran NARASIMHAN, Manuel G. VENEGAS, Saurabh MATHUR, Ralf LANGE, Muhammad Sofian bin ASI SIHOMBING
  • Publication number: 20180044274
    Abstract: The present invention relates generally to narrow range alcohol alkoxylates and derivatives thereof, such as alkyl ether sulfates.
    Type: Application
    Filed: October 24, 2017
    Publication date: February 15, 2018
    Inventors: Karunakaran NARASIMHAN, Manuel G. VENEGAS, Saurabh MATHUR, Ralf LANGE, Muhammad Sofian bin ASI SIHOMBING
  • Patent number: 9828321
    Abstract: The present invention relates generally to narrow range alcohol alkoxylates and derivatives thereof, such as alkyl ether sulfates.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: November 28, 2017
    Assignee: The Procter & Gamble Company
    Inventors: Karunakaran Narasimhan, Manuel G Venegas, Saurabh Mathur, Ralf Lange, Muhammad Sofian bin Asi Sihombing
  • Publication number: 20160297733
    Abstract: The present invention relates generally to narrow range alcohol alkoxylates and derivatives thereof, such as alkyl ether sulfates.
    Type: Application
    Filed: April 8, 2015
    Publication date: October 13, 2016
    Inventors: Karunakaran NARASIMHAN, Manuel G. VENEGAS, Saurabh MATHUR, Ralf LANGE, Muhammad Sofian bin ASI SIHOMBING
  • Patent number: 7763715
    Abstract: Methods for using ionic liquids to extract and separate a biopolymer from a biomass containing the biopolymer are disclosed. Methods for dissolving a biopolymer in an ionic liquid are also disclosed. A recovery solvent is used to reduce the solubility of the biopolymer in the ionic liquid and conventional separation techniques are used to recover the biopolymer. Biopolymers encompassed by this invention include chitin, chitosan, elastin, collagen, keratin and polyhydroxyalkanoate.
    Type: Grant
    Filed: April 19, 2006
    Date of Patent: July 27, 2010
    Assignee: The Procter & Gamble Company
    Inventors: Stacie Ellen Hecht, Raymond Louis Niehoff, Karunakaran Narasimhan, Charles William Neal, Paul Arlen Forshey, Dean Van Phan, Anju Deepali Massey Brooker, Katherine Helen Combs
  • Patent number: 7378266
    Abstract: Improved processes for extracting polyhydroxyalkanoate from a biomass containing the polyhydroxyalkanoate including the steps of: combining the biomass containing the polyhydroxyalkanoate with a solvent selected from lower chain ketones, and mixtures thereof to form a biomass liquor wherein the biomass liquor comprises less than about 25% water; mixing the biomass liquor for from about 10 to about 300 minutes at a temperature in the range of from about 70° C. to about 120° C.; separating the polyhydroxyalkanoate from the biomass liquor to form a PHA-enriched liquor, wherein the separating occurs at a temperature of at least about 40° C.; mixing the PHA-enriched liquor with water to form precipitated polyhydroxyalkanoate and an impure solvent liquor, wherein the water is mixed with the PHA-enriched liquor in the ratio of from at least about 0.4-1 parts of water to one part solvent; and recovering the precipitated polyhydroxyalkanoate from the impure solvent liquor.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: May 27, 2008
    Assignee: Meredian, Inc.
    Inventors: Karunakaran Narasimhan, Angella Christine Cearley, Michael Steven Gibson, Stanley James Welling
  • Publication number: 20070141678
    Abstract: Processes for purifying oligosaccharides including contacting a basic oligosaccharide solution with a basic boronate resin to bind monosaccharides to the basic boronate resin and obtain a purified oligosaccharide solution. The basic boronate resin can bind about 50% of the monosaccharides and about 10% of oligosaccharides in the basic oligosaccharide solution, by weight of total carbohydrates therein.
    Type: Application
    Filed: November 27, 2006
    Publication date: June 21, 2007
    Inventors: Phillip Richard Green, Karunakaran Narasimhan
  • Patent number: 7226765
    Abstract: Processes for the extraction of PHAs from biomass, said processes comprising: combining the biomass containing the PHAs with a single main solvent to form a biomass liquor; heating the biomass liquor to at least partially solubilize the PHAs from the biomass to form a PHA liquor; separating the biomass from the PHA liquor to form a PHA-enriched liquor; evaporating from 0% to about 50% of the single main solvent from the PHA-enriched liquor to form a solvent vapor and a concentrated PHA-enriched liquor; and cooling the concentrated PHA-enriched liquor to form precipitated PHAs and an impure solvent liquor. Optionally, further recovering the precipitated PHAs from the impure solvent liquor by filtration under pressure. A PHA-enriched liquor and a concentrated PHA-enriched liquor.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: June 5, 2007
    Assignee: The Procter & Gamble Company
    Inventors: Karunakaran Narasimhan, Kenneth Yee, Angella Christine Cearley, Donald Levengood, Guo-Qiang Chen
  • Patent number: 7153928
    Abstract: The present invention provides a method for easily obtaining a biodegradable polyhydroxyalkanoate by a solvent extraction method. A method for producing a polyhydroxyalkanoate crystal comprises mixing a solution of a polyhydroxyalkanoate in a good solvent with a poor solvent at 50 to 130° C. to precipitate a polyhydroxyalkanoate.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: December 26, 2006
    Assignees: Kaneka Corporation, The Procter & Gamble Company
    Inventors: Koichi Kinoshita, Fumio Osakada, Yasuyoshi Ueda, Karunakaran Narasimhan, Angella Christine Cearley, Kenneth Yee, Isao Noda
  • Publication number: 20060241287
    Abstract: Methods for using ionic liquids to extract and separate a biopolymer from a biomass containing the biopolymer are disclosed. Methods for dissolving a biopolymer in an ionic liquid are also disclosed. A recovery solvent is used to reduce the solubility of the biopolymer in the ionic liquid and conventional separation techniques are used to recover the biopolymer. Biopolymers encompassed by this invention include chitin, chitosan, elastin, collagen, keratin and polyhydroxyalkanoate.
    Type: Application
    Filed: April 19, 2006
    Publication date: October 26, 2006
    Inventors: Stacie Hecht, Raymond Niehoff, Karunakaran Narasimhan, Charles Neal, Paul Forshey, Dean Phan, Anju Brooker, Katherine Combs
  • Patent number: 7118897
    Abstract: The invention relates to processes for extracting polyhydroxyalkanoate from a biomass, comprising admixing the biomass with an organic solvent for from 1 second to 15 minutes at a first temperature of from 5° C. below the melting point of the polyhydroxyalkanoate to 10° C. above the melting point of the polyhydroxyalkanoate and at a pressure of from 1 bar to 10 bar to provide a composition comprising the organic solvent and polyhydroxyalkanoate.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: October 10, 2006
    Inventors: Karunakaran Narasimhan, Isao Noda, Michael Matthew Satkowski, Angella Christine Cearley, Michael Steven Gibson, Stanley James Welling
  • Patent number: 7098298
    Abstract: The present invention provides a method for conveniently obtaining a biodegradable polyhydroxyalkanoate by a solvent extraction method. A method for producing a polyhydroxyalkanoate crystal comprises precipitating a polyhydroxyalkanoate crystal using a monohydric alcohol having 4 to 10 carbon atoms as a extraction solvent, keeping a polyhydroxyalkanoate solution containing 0.1 to 10% by weight of water relative to the total amount of the solution warm at 70° C. or higher, and cooling the solution to below 70° C.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: August 29, 2006
    Assignees: Kaneka Corporation, Procter & Gamble Company
    Inventors: Koichi Kinoshita, Fumio Osakada, Yasuyoshi Ueda, Karunakaran Narasimhan, Angella Christine Cearley, Kenneth Yee, Isao Noda