Patents by Inventor Keith W. Hutchenson

Keith W. Hutchenson 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).

  • HYDROGENATION PROCESS FOR THE PREPARATION OF TETRAHYDROFURAN AND ALKYLATED DERIVATIVES THEREOF
    Publication number: 20120035378
    Abstract: A process is provided for the synthesis of tetrahydrofuran and related compounds by hydrogenation of furan and derivatives, using a sponge nickel catalyst that has been promoted with iron and chromium.
    Type: Application
    Filed: April 6, 2010
    Publication date: February 9, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Keith W. Hutchenson, Sourav Kumar Sengupta
  • CONTINUOUS LIQUID-PHASE PROCESS FOR THE SYNTHESIS OF DIAMINOPYRIDINES FROM GLUTARONITRILES
    Publication number: 20110301314
    Abstract: A liquid-phase, continuous process is provided for the manufacture of 2,6-diaminopyridine and related compounds from glutaronitriles, which are used industrially as compounds and as components in the synthesis of a variety of useful materials. The synthesis proceeds by means of a dehydrogenative aromatization process.
    Type: Application
    Filed: December 17, 2009
    Publication date: December 8, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Keith W. Hutchenson, Aaron Minter
  • CARBON DIOXIDE REMOVAL AND IONIC LIQUID COMPOUNDS USEFUL THEREIN
    Publication number: 20110296993
    Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker; and to methods of carbon dioxide removal in which they may be used.
    Type: Application
    Filed: December 4, 2009
    Publication date: December 8, 2011
    Inventors: Thomas Foo, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter, Mark Brandon Shiflett
  • METHOD FOR OBTAINING POLYUNSATURATED FATTY ACID-CONTAINING COMPOSITIONS FROM MICROBIAL BIOMASS
    Publication number: 20110263709
    Abstract: A method is disclosed for obtaining a refined lipid composition comprising at least one polyunsaturated fatty acid from a microbial biomass, wherein the refined lipid composition comprises at least one polyunsaturated fatty acid and is enriched in triacylglycerols relative to the oil composition of the microbial biomass.
    Type: Application
    Filed: April 20, 2011
    Publication date: October 27, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Keith W. Hutchenson, Richard E. Bockrath, Robert D. Orlandi
  • Gas-phase process for the synthesis of diaminopyridines from glutaronitriles
    Patent number: 7999057
    Abstract: A gas-phase, continuous process is provided for the manufacture of 2,6-diaminopyridine and related compounds from glutaronitriles, which are used industrially as compounds and as components in the synthesis of a variety of useful materials. The synthesis proceeds by means of a dehydrogenative aromatization process.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: August 16, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Keith W. Hutchenson, Aaron Minter, Gregg Sunshine
  • FUNCTIONALIZED N-SUBSTITUTED PYRROLIDONIUM IONIC LIQUIDS
    Publication number: 20110137048
    Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker.
    Type: Application
    Filed: June 2, 2010
    Publication date: June 9, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Thomas Foo, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter
  • PRODUCTION OF DIHYDRONEPETALACTONE
    Publication number: 20100168447
    Abstract: This invention provides a process for producing dihydronepetalactone using mixtures comprising both trans-cis nepetalactone and cis-trans nepetalactone. A reaction mixture comprising trans-cis nepetalactone and cis-trans nepetalactone is first contacted with hydrogen in the presence of at least one hydrogenation catalyst under conditions that optimise the preferential conversion of trans-cis nepetalactone to dihydronepetalactone. Cis-trans nepetalactone is subsequently converted to dihydronepetalactone by contact with hydrogen in the presence of at least one hydrogenation catalyst.
    Type: Application
    Filed: December 20, 2007
    Publication date: July 1, 2010
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Keith W. Hutchenson, Ccott Christopher Jackson, Leo Ernest Manzer, Mark A. Scialdone, Mayis Seapan
  • PROCESS FOR FERMENTIVE PREPARATION OF ALCOHOLS AND RECOVERY OF PRODUCT
    Publication number: 20100139154
    Abstract: This invention relates to a process for recovering an alcohol from a fermentation broth using liquid-liquid extraction, wherein at least one ionic liquid is used as the extractive solvent.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 10, 2010
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Jeanine M. Erdner-Tindall, Keith W. Hutchenson, Mark Brandon Shiflett, Ranjan Patnaik
  • FUNCTIONALIZED N-SUBSTITUTED PYRROLIDONIUM IONIC LIQUIDS
    Publication number: 20100145074
    Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 10, 2010
    Inventors: THOMAS FOO, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter
  • SOLVENT ADDITION AND REMOVAL IN THE HYDROGENATION OF CATMINT OIL
    Publication number: 20100145078
    Abstract: Disclosed are methods for treating catmint oil. The treated catmint oil can be used for the production of hydrogenated catmint oil, which is enriched in the insect repellent, dihydronepetalactone, and from which formulated products may be prepared.
    Type: Application
    Filed: December 20, 2007
    Publication date: June 10, 2010
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: John Charles Fisher, Keith W. Hutchenson, Scott Chirstopher Jackson, Leo Ernest Manzer, Mark A. Scialdone, Mayis Seapan
  • PROCESS FOR FERMENTIVE PREPARATION OF ALCOHOLS AND RECOVERY OF PRODUCT
    Publication number: 20100140166
    Abstract: This invention relates to a process for recovering an alcohol from a fermentation broth using liquid-liquid extraction, wherein at least one ionic liquid is used as the extractive solvent.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 10, 2010
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Jeanine M. Erdner-Tindall, Keith W. Hutchenson, Mark Brandon Shiflett, Ranjan Patnaik
  • N-SUBSTITUTED PYRROLIDONIUM IONIC LIQUIDS
    Publication number: 20100145073
    Abstract: This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker, which compounds may be represented by the structure of the following Formula I: wherein: (a) Z is —(CH2)n—, wherein n is an integer from 2 to 12; (b) R2, R3 and R4 are each independently H or a C1 to C6 straight-chain or branched alkyl group; and (c) A?is levulinate, —[CF3—O—CFHCF2SO3]—, [CF3CF2OCFHCF2SO3]—, or [CF3CF2CF2OCFHCF2SO3]—.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 10, 2010
    Inventors: THOMAS FOO, Mark Andrew Harmer, Keith W. Hutchenson, Christopher P. Junk, Berlyn R. Mellein, Aaron Minter
  • Process for Fermentive Preparation of Alcohols and Recovery of Product
    Publication number: 20100143995
    Abstract: This invention relates to a process for recovering an alcohol from a fermentation broth using liquid-liquid extraction, wherein at least one ionic liquid is used as the extractive solvent.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 10, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Jeanine M. Erdner-Tindall, Keith W. Hutchenson, Mark Brandon Shiflett, Ranjan Patnaik
  • Process for Fermentive Preparation of Alcohols and Recovery of Product
    Publication number: 20100143992
    Abstract: This invention relates to a process for recovering an alcohol from a fermentation broth using liquid-liquid extraction, wherein at least one ionic liquid is used as the extractive solvent.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 10, 2010
    Applicant: E. I du Pont de Nemours and Company
    Inventors: Jeanine M. Erdner-Tindall, Keith W. Hutchenson, Mark Brandon Shiflett, Ranjan Patnaik
  • PROCESS FOR FERMENTIVE PREPARATION OF ALCOHOLS AND RECOVERY OF PRODUCT
    Publication number: 20100143994
    Abstract: This invention relates to a process for recovering an alcohol from a fermentation broth using liquid-liquid extraction, wherein at least one ionic liquid is used as the extractive solvent.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 10, 2010
    Inventors: Jeanine M. Erdner-Tindall, Keith W. Hutchenson, Mark Brandon Shiflett, Ranjan Patnaik
  • PROCESS FOR FERMENTIVE PREPARATION FO ALCOHOLS AND RECOVERY OF PRODUCT
    Publication number: 20100144000
    Abstract: This invention relates to a process for recovering an alcohol from a fermentation broth using liquid-liquid extraction, wherein at least one ionic liquid is used as the extractive solvent.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 10, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Jeanine M. Erdner-Tindall, Keith W. Hutchenson, Mark Brandon Shiflett, Ranjan Patnaik
  • PROCESS FOR FERMENTIVE PREPARATION OF ALCOHOLS AND RECOVERY OF PRODUCT
    Publication number: 20100143999
    Abstract: This invention relates to a process for recovering an alcohol from a fermentation broth using liquid-liquid extraction, wherein at least one ionic liquid is used as the extractive solvent.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 10, 2010
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Jeanine M. Erdner-Tindall, Keith W. Hutchenson, Mark Brandon Shiflett, Ranjan Patnaik
  • PROCESS FOR FERMENTIVE PREPARATIONFOR ALCOLHOLS AND RECOVERY OF PRODUCT
    Publication number: 20100143993
    Abstract: This invention relates to a process for recovering an alcohol from a fermentation broth using liquid-liquid extraction, wherein at least one ionic liquid is used as the extractive solvent.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 10, 2010
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Jeanine M. Erdner-Tindall, Keith W. Hutchenson, Mark Brandon Shiflett, Ranjan Patnaik
  • HYDROGENATION OF CARYOPHELLENE
    Publication number: 20100092404
    Abstract: A process for the hydrogenation of a mixture of caryophyllenes by contact with hydrogen in the presence of a supported catalyst. The resulting products are useful for the application to skin.
    Type: Application
    Filed: December 20, 2007
    Publication date: April 15, 2010
    Applicant: E.I. DU PONT DE NEMOURS AND COMAPNY
    Inventors: Keith W. Hutchenson, Scott Christopher Jackson, Leo Ernest Manzer, Mark A. Scialdone, Mayis Seapan
  • GAS-PHASE PROCESS FOR THE SYNTHESIS OF DIAMINOPYRIDINES FROM GLUTARONITRILES
    Publication number: 20100010189
    Abstract: A gas-phase, continuous process is provided for the manufacture of 2,6-diaminopyridine and related compounds from glutaronitriles, which are used industrially as compounds and as components in the synthesis of a variety of useful materials. The synthesis proceeds by means of a dehydrogenative aromatization process.
    Type: Application
    Filed: July 8, 2008
    Publication date: January 14, 2010
    Inventors: KEITH W. HUTCHENSON, AARON MINTER, GREGG SUNSHINE