Patents by Inventor Ayrookaran Poulose

Ayrookaran Poulose 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: 9714403
    Abstract: Compositions comprising cellulase and at least one poly alpha-1,3-glucan ether compound having a degree of substitution with a positively charged organic group of about 0.05-3.0 are disclosed. Such compositions can be dry or aqueous, the latter of which can have a viscosity of at least about 10 cPs. The disclosed composition can be in the form of a personal care product, household product, or industrial product, for example. Also disclosed are a method for preparing an aqueous composition comprising cellulase and a poly alpha-1,3-glucan ether compound, and a method of treating a material such as fabric by contacting it with this aqueous composition.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: July 25, 2017
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Kevin D Nagy, Ayrookaran Poulose, T Joseph Dennes, Perry G Caimi, Jayme L Paullin, Susan Marie Hennessey
  • Publication number: 20150368595
    Abstract: Compositions comprising cellulase and at least one poly alpha-1,3-glucan ether compound having a degree of substitution with a positively charged organic group of about 0.05-3.0 are disclosed. Such compositions can be dry or aqueous, the latter of which can have a viscosity of at least about 10 cPs. The disclosed composition can be in the form of a personal care product, household product, or industrial product, for example. Also disclosed are a method for preparing an aqueous composition comprising cellulase and a poly alpha-1,3-glucan ether compound, and a method of treating a material such as fabric by contacting it with this aqueous composition.
    Type: Application
    Filed: June 17, 2015
    Publication date: December 24, 2015
    Inventors: KEVIN D. NAGY, Ayrookaran Poulose, T. Joseph Dennes, Perry G. Caimi, Jayme L. Paullin, Susan Marie Hennessey
  • Patent number: 8530219
    Abstract: The present invention provides a Bacillus sp. subtilisin variant. In addition, the present invention provides compositions comprising this serine protease variant. In some embodiments, the present invention provides laundry and other non-automatic (i.e., hand) dishwashing cleaning compositions comprising this serine protease variant.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: September 10, 2013
    Assignee: Danisco US Inc.
    Inventors: David A. Estell, Frits Goedegebuur, Ayrookaran Poulose
  • Publication number: 20080090747
    Abstract: The present invention provides protease compositions particularly suited for dishwashing applications.
    Type: Application
    Filed: July 9, 2007
    Publication date: April 17, 2008
    Inventors: Pieter Augustinus, Frits Goedegebuur, Ayrookaran Poulose, Johannes Van Der Laan
  • Publication number: 20080063774
    Abstract: The present invention provides novel Micrococcineae spp serine proteases having multiple substitutions. In particular, the present invention provides serine proteases having multiple substitutions, DNA encoding these proteases, vectors comprising the DNA encoding the proteases, host cells transformed with the vector DNA, and enzymes produced by the host cells. The present invention also provides cleaning compositions (e.g., detergent compositions), animal feed compositions, and textile and leather processing compositions comprising these serine protease variants. In particularly preferred embodiments, the present invention provides mutant (i.e., variant) proteases derived from the wild-type proteases described herein. These variant proteases also find use in numerous applications.
    Type: Application
    Filed: May 31, 2007
    Publication date: March 13, 2008
    Inventors: Wolfgang Aehle, David Estell, Ronaldus Hommes, Brian Jones, Marc Kolkman, Chris Leeflang, Hiroshi Oh, Ayrookaran Poulose, Andrew Shaw, Wilhelmus Van Der Kley, Leonardus Van Marrewijk
  • Publication number: 20080029130
    Abstract: The present invention provides methods and compositions for dynamic pH control, particularly in detergent applications. In particularly preferred embodiments, the detergent compositions find use in surface removal of soils from fabrics, including clothing. In some particularly preferred embodiments, the present invention provides combinations of enzymes to provide for dynamic pH control.
    Type: Application
    Filed: February 16, 2007
    Publication date: February 7, 2008
    Inventors: Edward Concar, David Estell, Hiroshi Oh, Ayrookaran Poulose
  • Publication number: 20080025960
    Abstract: The present invention provides methods and compositions for the stabilization of oxidase enzymes during storage. In some preferred embodiments, the oxidase is a component of liquid detergent compositions. In some particularly preferred embodiments, the oxidase is stabilized by the addition of a reversible inhibitor of the oxidase to a liquid detergent. In some particularly preferred embodiments, the oxidase is stabilized with bisulfite. In further preferred embodiments, the use of a reversible inhibitor also prevents premature generation of peroxide during storage of liquid detergent. In additional embodiments, liquid detergent formulations comprised of oxidase enzyme, its substrate, and its reversible inhibitor produce active oxygen species (peroxide) upon dilution of the liquid detergent in laundry wash liquor.
    Type: Application
    Filed: July 5, 2007
    Publication date: January 31, 2008
    Inventors: Manoj Kumar, Ayrookaran Poulose
  • Publication number: 20070167344
    Abstract: The present invention provides methods and compositions comprising at least one perhydrolase enzyme for cleaning and other applications. In some embodiments, the present invention provides methods and compositions for generation of long chain peracids. Certain embodiments of the present invention find particular use in applications involving cleaning, bleaching and disinfecting.
    Type: Application
    Filed: November 9, 2006
    Publication date: July 19, 2007
    Inventors: Neelam Amin, Richard Bott, Marguerite Cervin, Ayrookaran Poulose, Walter Weyler
  • Publication number: 20070134779
    Abstract: A method is provided for enzymatically modifying a polyester resin, film, fiber, yarn, fabric or textile to modify the characteristics thereof.
    Type: Application
    Filed: October 18, 2006
    Publication date: June 14, 2007
    Inventors: Wade Dyson, James Kellis, Ayrookaran Poulose, Mee-Young Yoon
  • Publication number: 20060127278
    Abstract: The present disclosure relates to a device for measuring surface plasmon resonance and fluorescence of a sample, a system for determining the rate of catalytic activity of an enzyme, a method of determining the rate of catalytic activity of an enzyme, and a method of measuring the adsorption and reactivity of a substance, all of which use SPR and SPEF methods simultaneously. This invention also relates generally to systems and methods for measuring diffusion and reactivity of macromolecules on a surface.
    Type: Application
    Filed: April 25, 2003
    Publication date: June 15, 2006
    Inventors: Alice Gast, James Kellis, Joon-H Kim, Ayrookaran Poulose, Shaunak Roy
  • Publication number: 20050221461
    Abstract: Novel enzyme variants including protease variants derived from the DNA sequences of naturally-occurring or re-combinant non-human proteases are disclosed. The variant proteases, in general, are obtained by in vitro modification of a precursor DNA sequence encoding the naturally-occurring or recombinant protease to generate the substitution of a plurality of amino acid residues in the amino acid sequence of a precursor protease. Such variant proteases have properties which are different from those of the precursor protease, such as altered wash performance. The substituted amino acid residue correspond to positions 27, 45, 170, 181, 251 and 271 of Bacillus amyloliquefaciens subtilisin. Additional variants comprising at least one additional substitution at a position selected from 1, 14, 49, 61, 87, 100, 102, 118, 128, 204 and 258 of Bacillus amyloliquefaciens subtilisin are also described.
    Type: Application
    Filed: January 16, 2003
    Publication date: October 6, 2005
    Inventors: Ayrookaran Poulose, David Estell, James Kellis Jr, Richard Bott
  • Publication number: 20050202552
    Abstract: The present invention relates to novel protein variants that exhibit reduced allergenicity when compared to the parental proteins. Also included are DNA molecules that encode the novel variants, host cells comprising the DNA and methods of making proteins less allergenic.
    Type: Application
    Filed: May 12, 2005
    Publication date: September 15, 2005
    Inventors: David Estell, Grant Ganshaw, Fiona Harding, Edmund Larenas, Ayrookaran Poulose, Elizabeth Sikorski, Elliott Russell
  • Publication number: 20050202551
    Abstract: The present invention relates to novel protein variants that exhibit reduced allergenicity when compared to the parental proteins. Also included are DNA molecules that encode the novel variants, host cells comprising the DNA and methods of making proteins less allergenic.
    Type: Application
    Filed: May 12, 2005
    Publication date: September 15, 2005
    Inventors: David Estell, Grant Ganshaw, Fiona Harding, Edmund Larenas, Ayrookaran Poulose, Elizabeth Sikorski, Elliott Russell
  • Publication number: 20050170488
    Abstract: Novel protease variants derived from the DNA sequences of naturally-occurring or recombinant non-human proteases are disclosed. The variant proteases, in general, are obtained by in vitro modification of a precursor DNA sequence encoding the naturally-occurring or recombinant protease to generate the substitution of a plurality of amino acid residues in the amino acid sequence of a precursor protease. Such variant proteases have properties which are different from those of the precursor protease, such as altered wash performance. The substituted amino acid residue equivalent to positions 7, 23, 26, 28, 29, 30, 31, 47, 66, 69, 73, 82, 85, 88, 90, 92, 93, 105, 113, 139, 148, 149, 150, 151, 178, 200, 201, 231, 233, 267 and/or 273 of Bacillus amyloliquefaciens subtilisin.
    Type: Application
    Filed: January 16, 2003
    Publication date: August 4, 2005
    Inventor: Ayrookaran Poulose
  • Publication number: 20050054843
    Abstract: The present invention provides novel protein variants that exhibit reduced immunogenic responses, as compared to the parental proteins. The present invention further provides DNA molecules that encode novel variants, host cells comprising DNA encoding novel variants, as well as methods for making proteins less allergenic. In addition, the present invention provides various compositions that comprise these proteins that are less immunogenic than the wild-type proteins.
    Type: Application
    Filed: December 20, 2002
    Publication date: March 10, 2005
    Inventors: David Estell, Fiona Harding, Ayrookaran Poulose
  • Publication number: 20050003430
    Abstract: An approach for detecting polymers and polymer fragments by analyzing mass analysis data of mixtures that include labeled versions of the polymers is disclosed. A library of polymer fragments is generated based on the possible fragments of a parent polymer. For each fragment in the library, a theoretical mass for both a natural version and a labeled version is generated. The labeled version may be based on a heavier isotope of an element. Data from a mass analysis, such as a mass spectrographic analysis, is received and automatically analyzed to identify whether a mass doublet is observed for each fragment in the library. The mass doublets correspond to the mass peaks of the natural and labeled versions of the fragments in the library. A determination is made whether a particular mass peak is from a labeled parent polymer or whether the particular mass peak is from an unlabeled source.
    Type: Application
    Filed: July 16, 2004
    Publication date: January 6, 2005
    Inventors: Donald Naki, Ayrookaran Poulose