Patents by Inventor Leo Ernest Manzer

Leo Ernest Manzer 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).

  • 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
  • Catalytic conversion of ethanol and methanol to an isobutanol-containing reaction product using a thermally decomposed hydrotalcite catalyst
    Patent number: 7705192
    Abstract: Hydrotalcites are partially or fully thermally decomposed to provide catalysts useful for the conversion of ethanol plus methanol to a reaction product comprising isobutanol.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: April 27, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Kostantinos Kourtakis, Michael B. D'Amore, Leo Ernest Manzer
  • Catalytic conversion of ethanol to a 1-butanol-containing reaction product using a thermally decomposed hydrotalcite containing the anion of ethylenediaminetetraacetic acid
    Patent number: 7700812
    Abstract: Hydrotalcites containing the anion of ethylenediaminetetraacetic acid are partially or fully thermally decomposed to provide catalysts useful for the conversion of ethanol to a reaction product comprising 1-butanol.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: April 20, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Kostantinos Kourtakis, Michael B. D'Amore, Leo Ernest Manzer
  • Catalytic conversion of ethanol to a 1-butanol-containing reaction product using a thermally decomposed hydrotalcite/metal carbonate
    Patent number: 7700811
    Abstract: Hydrotalcite/metal carbonate combinations are partially or fully thermally decomposed to provide catalysts useful for the conversion of ethanol to a reaction product comprising 1-butanol.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: April 20, 2010
    Assignee: E.I. du Pont de Namours and Company
    Inventors: Kostantinos Kourtakis, Michael B. D'Amore, Leo Ernest Manzer
  • Catalytic conversion of ethanol to a 1-butanol-containing reaction product using a thermally decomposed hydrotalcite catalyst
    Patent number: 7700810
    Abstract: Hydrotalcites are partially or fully thermally decomposed to provide catalysts useful for the conversion of ethanol to a reaction product comprising 1-butanol.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: April 20, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Kostantinos Kourtakis, Michael B. D'Amore, Leo Ernest Manzer
  • Catalytic conversion of ethanol and methanol to an isobutanol-containing reaction product using a thermally decomposed hydrotalcite containing the anion of ethylenediaminetetraacetic acid
    Patent number: 7700813
    Abstract: Hydrotalcites containing the anion of ethylenediaminetetraacetic acid are partially or fully thermally decomposed to provide catalysts useful for the conversion of ethanol and methanol to a reaction product comprising isobutanol.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: April 20, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Kostantinos Kourtakis, Michael B. D'Amore, Leo Ernest Manzer
  • 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
  • HYDROXYMETHYLFURFURAL ETHERS AND ESTERS PREPARED IN IONIC LIQUIDS
    Publication number: 20100081833
    Abstract: Accordingly, the current invention provides a method for the manufacture of an ether or ester of 5-hydroxymethyl-furfural by reacting a hexose-containing starting material or HMF with an alcohol or an organic acid dissolved into an ionic liquid, using a metal chloride as catalyst.
    Type: Application
    Filed: September 5, 2008
    Publication date: April 1, 2010
    Applicant: FURANIX TECHNOLOGIES B.V.
    Inventors: Gerardus Johannes Maria Gruter, Leo Ernest Manzer, Ano Sofia Vagueiro De Sousa Dias, Frits Dautzenberg, Jindra Purmova
  • HYDROXYMETHYLFURFURAL ETHERS FROM SUGARS OR HMF AND MIXED ALCOHOLS
    Publication number: 20100058650
    Abstract: Accordingly, the current invention provides a method for the manufacture of a mixture of 5-hydroxymethylfurfural ethers by reacting a hexose-containing starting material or HMF with mixed alcohols in the presence of an acid catalyst.
    Type: Application
    Filed: September 5, 2008
    Publication date: March 11, 2010
    Applicant: FURANIX TECHNOLOGIES B.V.
    Inventors: Gerardus Johannes Maria Gruter, Leo Ernest Manzer
  • METHOD OF MAKING 2-BUTANOL
    Publication number: 20100056832
    Abstract: The present invention relates to a method for making 2-butanol from 2,3-butanediol by using a heterogeneous catalyst system that can function both as an acid catalyst and as a hydrogenation catalyst.
    Type: Application
    Filed: November 30, 2007
    Publication date: March 4, 2010
    Inventor: Leo Ernest Manzer
  • Methods for purifying alkane liquids
    Patent number: 7671247
    Abstract: Methods for purifying liquid alkanes are provided. The methods produce alkanes having low absorbance, particularly at 193 nm. The alkane liquids are useful as immersion liquids in photomicrolithography employed for production of electronic circuits.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: March 2, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Robert Clayton Wheland, Leo Ernest Manzer, Sheng Peng
  • STEAM DISTILLATION OF CATMINT PLANTS
    Publication number: 20100034906
    Abstract: This invention provides processes for improved recovery of essential oil from the catmint (catnip) plant Nepeta cataria.
    Type: Application
    Filed: December 20, 2007
    Publication date: February 11, 2010
    Inventors: Yamaira Gonzalez, Scott Christopher Jackson, Leo Ernest Manzer
  • PRODUCTION OF BUTENES AND DERIVATIVES THEREFROM FROM AQUEOUS ETHANOL
    Publication number: 20100036173
    Abstract: The present invention relates to the production of butenes and derivatives thereof from aqueous ethanol, optionally obtained from a fermentation broth. The butenes thus produced find use as intermediates for the production of polyethylenes and for the production of other known, useful materials.
    Type: Application
    Filed: November 30, 2007
    Publication date: February 11, 2010
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Leo Ernest Manzer, Michael B. D'amore, Edwark S. MIller, JR.
  • METHOD FOR MAKING INSECT REPELLENT COMPOSITION
    Publication number: 20100034754
    Abstract: Dihydronepetalactone, a minor natural constituent of the essential oil of catmints (Nepeta spp.) such as Nepeta cataria, has been identified as an effective insect repellent compound. Synthesis of dihydronepetalactone may be achieved by hydrogenation of nepetalactone, the major constituent of catmint essential oils. This compound, which also has fragrance properties, may be used commercially for its insect repellent properties, and methods for making an composition thereof are disclosed.
    Type: Application
    Filed: June 8, 2009
    Publication date: February 11, 2010
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: David L. Hallahan, Leo Ernest Manzer
  • PRODUCTION OF BUTENES AND DERIVATIVES THEREFROM FROM DRY ETHANOL
    Publication number: 20100029994
    Abstract: The present invention relates to the production of butenes and derivatives thereof from dry ethanol, optionally obtained from a fermentation broth. The butenes thus produced find use as intermediates for the production of polyethylenes and other materials.
    Type: Application
    Filed: November 30, 2007
    Publication date: February 4, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Leo Ernest Manzer, Michael B. D'Amore, Edward S. Miller, JR.
  • Ionic liquids
    Patent number: 7625941
    Abstract: The present invention relates to compositions of matter that are useful as ionic liquids. The compositions of the invention are based on an N-substituted pyrrolidinone, said pyrrolidinone having a pendant ammonium cation that is separated from the pyrrolidone ring by a variable length alkyl spacer. The compositions comprise fluoroalkyl sulfonate anions.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: December 1, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Mark Andrew Harmer, Christopher P. Junk, Leo Ernest Manzer
  • Production of N-(methyl aryl)-2-lactam, N-(methyl cycloalkyl)-2-lactam and N-alkyl-2-lactam by reductive amination of lactones with aryl and alkyl cyano compounds
    Patent number: 7612216
    Abstract: This invention relates to a process for producing N-(methyl aryl)-2-lactams, N-alkyl-2-lactams, and N-(methyl cycloalkyl)-2-lactams by reductive amination of lactones with aryl or alkyl cyano compounds utilizing a metal catalyst, which is optionally supported.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: November 3, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Leo Ernest Manzer
  • Method for making insect repellent composition
    Patent number: 7547793
    Abstract: Dihydronepetalactone, a minor natural constituent of the essential oil of catmints (Nepeta spp.) such as Nepeta cataria, has been identified as an effective insect repellent compound. Synthesis of dihydronepetalactone may be achieved by hydrogenation of nepetalactone, the major constituent of catmint essential oils. This compound, which also has fragrance properties, may be used commercially for its insect repellent properties, and methods for making an composition thereof are disclosed.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: June 16, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: David L. Hallahan, Leo Ernest Manzer
  • Process for making isooctenes from aqueous isobutanol
    Publication number: 20090099401
    Abstract: The present invention relates to a catalytic process for making isooctenes using a reactant comprising isobutanol and water. The isooctenes so produced are useful for the production of fuel additives.
    Type: Application
    Filed: June 13, 2007
    Publication date: April 16, 2009
    Inventors: Michael B. D'Amore, Leo Ernest Manzer, Edward S. Miller, JR., Jeffrey P. Knapp
  • CATALYTIC CONVERSION OF ETHANOL TO A 1-BUTANOL-CONTAINING REACTION PRODUCT USING A THERMALLY DECOMPOSED HYDROTALCITE CATALYST
    Publication number: 20090054705
    Abstract: Hydrotalcites are partially or fully thermally decomposed to provide catalysts useful for the conversion of ethanol to a reaction product comprising 1-butanol.
    Type: Application
    Filed: August 22, 2008
    Publication date: February 26, 2009
    Inventors: Kostantinos Kourtakis, Michael B. D'Amore, Leo Ernest Manzer