Patents by Inventor Stephen T. McKenna

Stephen T. McKenna 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: 9550729
    Abstract: Catalytic compositions are provided that are effective for providing increased acrylonitrile product without a significant decrease in hydrogen cyanide and/or acetonitrile production and provide an overall increase in production of acrylonitrile, hydrogen cyanide and acetonitrile. The catalytic compositions include a complex of metal oxides and include at least about 15% m-phase plus t-phase by weight and have a weight ratio of m-phase to m-phase plus t-phase of 0.45 or greater.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: January 24, 2017
    Assignee: INEOS EUROPE AG
    Inventors: James F. Brazdil, Mark A. Toft, Stephen T. McKenna
  • Publication number: 20160340296
    Abstract: Catalytic compositions are provided that are effective for providing increased acrylonitrile product without a significant decrease in hydrogen cyanide and/or acetonitrile production and provide an overall increase in production of acrylonitrile, hydrogen cyanide and acetonitrile. The catalytic compositions include a complex of metal oxides and include at least about 15% m-phase plus t-phase by weight and have a weight ratio of m-phase to m-phase plus t-phase of 0.45 or greater.
    Type: Application
    Filed: August 2, 2016
    Publication date: November 24, 2016
    Applicant: INEOS EUROPE AG
    Inventors: James F. BRAZDIL, Mark A. TOFT, Stephen T. MCKENNA
  • Patent number: 9433929
    Abstract: Catalytic compositions are provided that are effective for providing increased acrylonitrile product without a significant decrease in hydrogen cyanide and/or acetonitrile production and provide an overall increase in production of acrylonitrile, hydrogen cyanide and acetonitrile. The catalytic compositions include a complex of metal oxides and include at least about 15% m-phase plus t-phase by weight and have a weight ratio of m-phase to m-phase plus t-phase of 0.45 or greater.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: September 6, 2016
    Assignee: INEOS EUROPE AG
    Inventors: James F. Brazdil, Mark A. Toft, Stephen T. McKenna
  • Publication number: 20130072710
    Abstract: Catalytic compositions are provided that are effective for providing increased acrylonitrile product without a significant decrease in hydrogen cyanide and/or acetonitrile production and provide an overall increase in production of acrylonitrile, hydrogen cyanide and acetonitrile. The catalytic compositions include a complex of metal oxides and include at least about 15% m-phase plus t-phase by weight and have a weight ratio of m-phase to m-phase plus t-phase of 0.45 or greater.
    Type: Application
    Filed: September 21, 2011
    Publication date: March 21, 2013
    Inventors: James F. Brazdil, Mark A. Toft, Stephen T. McKenna
  • Publication number: 20120323018
    Abstract: A graft copolymer containing one or more ethylenically-unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing graftable monomers grafted to a polyolefin is disclosed. Novel monomers, methods of making such monomers, and graft copolymers comprising such monomers are based on reacting an acylating agent with an amine to form a reaction product. The reaction product may include more than one chemical compound formed from the combination of the acylating agent and the amine. The monomer is the graftable, ethylenically unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing compound(s) of the reaction product. The monomer may, but need not, be recovered from the product mixture. The preferred monomer is the reaction product of malcic anhydride and 4-aminodiphenylamine. Also described is a method of making a dispersant viscosity index improver. The monomer of the present invention may be grafted to a polyolefin in solutions or melts.
    Type: Application
    Filed: June 20, 2011
    Publication date: December 20, 2012
    Inventors: Irwin L. Goldblatt, Shean-Jer Chen, Manish R. Patel, Stephen T. McKenna
  • Patent number: 7981847
    Abstract: A graft copolymer containing one or more ethylenically-unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing graftable monomers grafted to a polyolefin is disclosed. Novel monomers, methods of making such monomers, and graft copolymers comprising such monomers are based on reacting an acylating agent with an amine to form a reaction product. The reaction product may include more than one chemical compound formed from the combination of the acylating agent and the amine. The monomer is the graftable, ethylenically unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing compound(s) of the reaction product. The monomer may, but need not, be recovered from the product mixture. The preferred monomer is the reaction product of maleic anhydride and 4-aminodiphenylamine. Also described is a method of making a dispersant viscosity index improver. The monomer of the present invention may be grafted to a polyolefin in solutions or melts.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: July 19, 2011
    Assignee: Castrol Limited
    Inventors: Irwin L. Goldblatt, Shean-Jer Chen, Manish R. Patel, Stephen T. McKenna
  • Publication number: 20080139423
    Abstract: A graft copolymer containing one or more ethylenically-unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing graftable monomers grafted to a polyolefin is disclosed. Novel monomers, methods of making such monomers, and graft copolymers comprising such monomers are based on reacting an acylating agent with an amine to form a reaction product. The reaction product may include more than one chemical compound formed from the combination of the acylating agent and the amine. The monomer is the graftable, ethylenically unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing compound(s) of the reaction product. The monomer may, but need not, be recovered from the product mixture. The preferred monomer is the reaction product of maleic anhydride and 4-aminodiphenylamine. Also described is a method of making a dispersant viscosity index improver. The monomer of the present invention may be grafted to a polyolefin in solutions or melts.
    Type: Application
    Filed: February 11, 2008
    Publication date: June 12, 2008
    Inventors: Irwin L. Goldblatt, Shean-Jer Chen, Manish R. Patel, Stephen T. McKenna
  • Patent number: 7371713
    Abstract: A graft copolymer containing one or more ethylenically-unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing graftable monomers grafted to a polyolefin is disclosed. Novel monomers, methods of making such monomers, and graft copolymers comprising such monomers are based on reacting an acylating agent with an amine to form a reaction product. The reaction product may include more than one chemical compound formed from the combination of the acylating agent and the amine. The monomer is the graftable, ethylenically unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing compound(s) of the reaction product. The monomer may, but need not, be recovered from the product mixture. The preferred monomer is the reaction product of maleic anhydride and 4-aminodiphenylamine. Also described is a method of making a dispersant viscosity index improver. The monomer of the present invention may be grafted to a polyolefin in solutions or melts.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: May 13, 2008
    Assignee: Castrol Limited
    Inventors: Irwin L. Goldblatt, Shean-Jer Chen, Manish R. Patel, Stephen T. McKenna
  • Publication number: 20040043909
    Abstract: A graft copolymer containing one or more ethylenically-unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing graftable monomers grafted to a polyolefin is disclosed. Novel monomers, methods of making such monomers, and graft copolymers comprising such monomers are based on reacting an acylating agent with an amine to form a reaction product. The reaction product may include more than one chemical compound formed from the combination of the acylating agent and the amine. The monomer is the graftable, ethylenically unsaturated, aliphatic or aromatic, nitrogen- and oxygen-containing compound(s) of the reaction product. The monomer may, but need not, be recovered from the product mixture. The preferred monomer is the reaction product of maleic anhydride and 4-aminodiphenylamine. Also described is a method of making a dispersant viscosity index improver. The monomer of the present invention may be grafted to a polyolefin in solutions or melts.
    Type: Application
    Filed: May 23, 2003
    Publication date: March 4, 2004
    Inventors: Irwin L. Goldblatt, Shean-Jer Chen, Manish R. Patel, Stephen T. McKenna
  • Patent number: 5264407
    Abstract: The preparation, structure, and properties of solid inorganic materials containing aluminum, boron, oxygen and at least one Group VIII metallo element, selected from the group consisting of cobalt and nickel is described. Also described is the use of such materials in catalytic compositions for the conversion of organic compounds. In particular, the new materials having the general formula:(x)(M.sub.m :M'.sub.n)O.(y)Al.sub.2 O.sub.3.(z)B.sub.2 O.sub.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: November 23, 1993
    Assignee: Amoco Corporation
    Inventors: Larry C. Satek, Stephen T. McKenna, Vincent F. Smith, Jr.
  • Patent number: 5084259
    Abstract: The preparation, structure, and properties of solid inorganic materials containing aluminum, boron, oxygen and at least one Group VIII metallo element, selected from the group consisting of cobalt and nickel is described. Also described in the use of such materials in catalytic compositions for the conversion of organic compounds. In particular, the new materials having the general formula:(x) (M.sub.m :M'.sub.n)O.(y)Al.sub.2 O.sub.3.(z)B.sub.2 O.sub.
    Type: Grant
    Filed: March 15, 1991
    Date of Patent: January 28, 1992
    Assignee: Amoco Corporation
    Inventors: Larry C. Satek, Stephen T. McKenna, Vincent F. Smith, Jr.
  • Patent number: 4801571
    Abstract: A catalyst and process for production of an alpha, beta-ethylenically unsaturated monocarboxylic acid made by condensing formaldehyde with, for example, propionic acid, which catalyst is made from a SiO.sub.2 -SnO.sub.2 mixed-oxide component consisting of porous silica gel and tin (IV) oxide and a cesium ion component.
    Type: Grant
    Filed: July 9, 1987
    Date of Patent: January 31, 1989
    Assignee: Amoco Corporation
    Inventors: Ruth A. Montag, Stephen T. McKenna