Patents by Inventor James N. Michaels

James N. Michaels 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: 7560559
    Abstract: The invention provides novel polymorphic form of montelukast sodium, as well as methods of using and pharmaceutical compositions containing saud novel form. Also provided are montelukast sodium: acetonitrile solvates, which are intermediates in the formation of crystalline montelukast sodium.
    Type: Grant
    Filed: April 12, 2004
    Date of Patent: July 14, 2009
    Assignees: Merck & Co., Inc., Merck Frosst Canada & Co.
    Inventors: Jun-Hong Chou, Michael B. Gentzler, James N. Michaels, Cynthia Bazin, Sophie-Dorothee Clas, Chad Dalton, Michael Guojie Wu
  • Patent number: 5563314
    Abstract: There is provided a process for the net catalytic oxidative dehydrogenation of alkanes to produce alkenes. The process involves simultaneous equilibrium dehydrogenation of alkanes to alkenes and combustion of the hydrogen formed to drive the equilibrium dehydrogenation reaction further to the product alkenes. In the present reaction, the alkane feed is dehydrogenated over an equilbrium dehydrogenation catalyst in a first reactor, and the effluent from the first reactor is then passed into a second reactor containing a reducible metal oxide which serves to selectively combust hydrogen in an oxidation/reduction (REDOX) reaction. This particular mode of operation is termed a separate reactor, REDOX mode.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: October 8, 1996
    Inventors: Pradyot A. Agaskar, Robert K. Grasselli, James N. Michaels, P. Thomas Reischman, David L. Stern, John G. Tsikoyiannis
  • Patent number: 5530171
    Abstract: There is provided a process for the net catalytic oxidative dehydrogenation of alkanes to produce alkenes. The process involves simultaneous equilibrium dehydrogenation of alkanes to alkenes and combustion of the hydrogen formed to drive the equilibrium dehydrogenation reaction further to the product alkenes. In the present reaction, the alkane feed is passed into a reactor containing both an equilibrium dehydrogenation catalyst and a reducible metal oxide, whereby the alkane is dehydrogenated and the hydrogen produced is simultaneously and selectively combusted in oxidation/ reduction (REDOX) reaction with the reducible metal oxide. This particular mode of operation is termed a same reactor, REDOX mode. The equilibrium dehydrogenation catalyst may comprise platinum and the reducible metal oxide may contain bismuth, antimony, indium, or molybdenum, or a mixture thereof.
    Type: Grant
    Filed: April 17, 1995
    Date of Patent: June 25, 1996
    Assignee: Mobil Oil Corporation
    Inventors: Pradyot A. Agaskar, Robert K. Grasselli, James N. Michaels, P. Thomas Reischman, David L. Stern, John G. Tsikoyiannis
  • Patent number: 5527979
    Abstract: There is provided a process for the net catalytic oxidative dehydrogenation of alkanes to produce alkenes. The process involves simultaneous equilibrium dehydrogenation of alkanes to alkenes and combustion of the hydrogen formed to drive the equilibrium dehydrogenation reaction further to the product alkenes. In the present reaction, the alkane feed is dehydrogenated over an equilbrium dehydrogenation catalyst in a first reactor, and the effluent from the first reactor, along with oxygen, is then passed into a second reactor containing a metal oxide catalyst which serves to selectively catalyze the combustion of hydrogen. This particular mode of operation is termed a separate reactor, cofed oxygen mode. The equilibrium dehydrogenation catalyst may comprise platinum and the selective metal oxide combustion catalyst may contain bismuth, antimony, indium, molybdenum, or a mixture thereof.
    Type: Grant
    Filed: April 17, 1995
    Date of Patent: June 18, 1996
    Assignee: Mobil Oil Corporation
    Inventors: Pradyot A. Agaskar, Robert K Grasselli, James N. Michaels, P. Thomas Reischman, David L. Stern, John G. Tsikoyiannis
  • Patent number: 5430209
    Abstract: There is provided a process for the net catalytic oxidative dehydrogenation of alkanes to produce alkenes. The process involves simultaneous equilibrium dehydrogenation of alkanes to alkenes and combustion of the hydrogen formed to drive the equilibrium dehydrogenation reaction further to the product alkenes. In the present reaction, the alkane feed is dehydrogenated over an equilbrium dehydrogenation catalyst in a first reactor, and the effluent from the first reactor is then passed into a second reactor containing a reducible metal oxide which serves to selectively combust hydrogen in an oxidation/reduction (REDOX) reaction. This particular mode of operation is termed a separate reactor, REDOX mode.
    Type: Grant
    Filed: August 27, 1993
    Date of Patent: July 4, 1995
    Assignee: Mobil Oil Corp.
    Inventors: Pradyot A. Agaskar, Robert K. Grasselli, James N. Michaels, P. Thomas Reischman, David L. Stern, John G. Tsikoyiannis
  • Patent number: 5191138
    Abstract: There is provided a process for converting methane to hydrocarbons having at least two carbon atoms (i.e. higher hydrocarbons). The process involves oxidizing methane with a metal sulfide oxidizing agent. After this conversion of methane, the reduced metal sulfide may be regenerated by oxidation of the reduced metal sulfide.
    Type: Grant
    Filed: November 19, 1991
    Date of Patent: March 2, 1993
    Assignee: Mobil Oil Corp.
    Inventors: Scott Han, James N. Michaels, Robert E. Palermo, David L. Stern, Dennis E. Walsh
  • Patent number: 4643806
    Abstract: Oxidation reactions and unsaturation producing reactions are disclosed to be carried out in a solid-state electrocatalytic reactor for electrolytic energy conversion and chemicals production. Additional reactions are disclosed to be carried out in a solid-state electrocatalytic cross flow monolith which has a high ion transport surface area per reactor volume. The additional reactions include selected oxidation reactions, selected addition reactions, electrolysis of steam to hydrogen, decomposition of nitric oxide to nitrogen and oxygen and the manufacture of aluminum from Al.sub.2 O.sub.3 in a eutectic solution.
    Type: Grant
    Filed: October 3, 1983
    Date of Patent: February 17, 1987
    Assignees: W. R. Grace & Co., Massachusetts Institute of Technology
    Inventors: Louis Hegedus, Costas G. Vayenas, James N. Michaels
  • Patent number: 4463065
    Abstract: Disclosed herein are ribbed catalyst-coated solid-state electrolyte sheets as well as a method for producing such sheets. Also disclosed is a fuel cell reactor comprising a plurality of said sheets stacked one upon another and cemented together to form a monolithic structure. Novel reactions utilizing the reactor to produce useful chemical oxidation products and/or electricity are set forth. Also disclosed is a novel wiring system to collect electrical power generated by the reactor.
    Type: Grant
    Filed: February 2, 1982
    Date of Patent: July 31, 1984
    Assignees: W. R. Grace & Co., Massachusetts Institute of Technology
    Inventors: Louis Hegedus, Costas G. Vayenas, James N. Michaels