Patents by Inventor Scott Han

Scott Han 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).

  • Processes for the preparation of olefins, unsaturated carboxylic acids and unsaturated nitriles from alkanes
    Publication number: 20050176985
    Abstract: Improved processes for the preparation of olefins, unsaturated carboxylic acids and unsaturated nitrites involve the use of dehydrogenation catalysts suitable for the conversion of alkanes to alkenes and catalysts suitable for the conversion of alkanes and/or alkenes to unsaturated carboxylic acids or unsaturated nitrites.
    Type: Application
    Filed: March 10, 2005
    Publication date: August 11, 2005
    Inventors: Leonard Bogan, Anne Gaffney, Scott Han, Michele Heffner, Ruozhi Song, Donald Zolotorofe
  • Supported mixed metal oxide catalyst
    Patent number: 6919295
    Abstract: A supported catalyst comprising a mixed metal oxide is useful for the vapor phase catalytic partial oxidation of an alkane, or a mixture of an alkane and an alkene, to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane, or a mixture of an alkane and an alkene, to an unsaturated nitrile.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: July 19, 2005
    Assignee: Rohm and Haas Company
    Inventors: Anne Mae Gaffney, Scott Han, Michelle Doreen Heffner, Nneka Namono McNeal, Elsie Mae Vickery
  • Processes for the preparation of olefins, unsaturated carboxylic acids and unsaturated nitriles from alkanes
    Patent number: 6911556
    Abstract: Improved processes for the preparation of olefins, unsaturated carboxylic acids and unsaturated nitriles involve the use of dehydrogenation catalysts suitable for the conversion of alkanes to alkenes and catalysts suitable for the conversion of alkanes and/or alkenes to unsaturated carboxylic acids or unsaturated nitriles.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: June 28, 2005
    Assignee: Rohm and Haas Company
    Inventors: Leonard Edward Bogan, Jr., Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song, Donald Lee Zolotorofe
  • Process for the selective (AMM)oxidation of lower molecular weight alkanes and alkenes
    Publication number: 20050137415
    Abstract: An improved process for the production of unsaturated carboxylic acids and unsaturated nitrites from their corresponding C3 to C5 alkanes, or mixtures of C3 to C5 alkanes and alkenes, that involves a multi-stage reaction system which employs both separation of the oxidation product from one or more intermediate effluent streams, as well as feeding additional oxygen to reaction zones subsequent to the first reaction zone.
    Type: Application
    Filed: November 19, 2004
    Publication date: June 23, 2005
    Inventors: Leonard Bogan, Fernando Cavalcanti, Nitin Chadda, Sanjay Chaturvedi, Anne Gaffney, Scott Han, Peter Klugherz, Daniel Martenak, Mark Silvano, Elsie Vickery, Donald Zolotorofe
  • Catalyst systems for converting alkanes to alkenes and to their corresponding oxygenated products
    Publication number: 20050131255
    Abstract: Alkenes, unsaturated saturated carboxylic acids, saturated carboxylic acids and their higher analogues are prepared directly from corresponding alkanes utilizing using a mixed bed catalyst at flame temperatures in a short contact time reactor.
    Type: Application
    Filed: November 12, 2004
    Publication date: June 16, 2005
    Inventors: Abraham Benderly, Nitin Chadda, Anne Gaffney, Scott Han, Dominique Le, Mark Silvano
  • Recalcined catalyst
    Patent number: 6841699
    Abstract: A mixed metal oxide, which may be an orthorhombic phase material, is improved as a catalyst for the production of unsaturated carboxylic acids, or unsaturated nitriles, from alkanes, or mixtures of alkanes and alkenes, by: contacting with a liquid contacting member selected from the group consisting of organic acids, alcohols, inorganic acids and hydrogen peroxide to form a contact mixture; recovering insoluble material from the contact mixture; and calcining the recovered insoluble material in a non-oxidizing atmosphere.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: January 11, 2005
    Assignee: Rohm and Haas Company
    Inventors: Leonard Edward Bogan, Jr., Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Promoted multi-metal oxide catalyst
    Patent number: 6825380
    Abstract: A catalyst comprising a promoted mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated nitrile.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: November 30, 2004
    Assignee: Rohm and Haas Company
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Catalyst useful for oxidation of alkanes
    Patent number: 6809219
    Abstract: A catalyst useful for the gas phase oxidation of alkanes to unsaturated aldehydes or carboxylic acids is disclosed. Processes for preparing the catalyst and using the catalyst to convert alkanes to unsaturated aldehydes or carboxylic acids are also disclosed.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: October 26, 2004
    Assignee: Rohm and Haas Company
    Inventors: Scott Han, Dominique Hung Nhu Le, Nneka Namono McNeal
  • Methods for producing unsaturated carboxylic acids and unsaturated nitriles
    Publication number: 20040210086
    Abstract: Unsaturated carboxylic acids are produced by the vapor phase catalytic oxidation of mixtures of alkenes and alkanes in the presence of a catalyst containing a mixed metal oxide. Similarly, unsaturated nitrites are produced by the vapor phase catalytic oxidation of alkenes or mixtures of alkenes and alkanes and ammonia in the presence of a catalyst containing a mixed metal oxide.
    Type: Application
    Filed: November 25, 2003
    Publication date: October 21, 2004
    Inventors: Leonard Edward Bogan, Scott Han, Bradley Anson Jacobs, Frederick William Kaiser, Peter David Klugherz, Manhua Lin, Richard David Link, Michael William Linsen
  • Promoted multi-metal catalyst
    Patent number: 6797840
    Abstract: A catalyst comprising an In promoted mixed metal oxide is useful for the vapor phase oxidation of an alkane, or a mixture of an alkane and an alkene, to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane, or a mixture of an alkane and an alkene, to an unsaturated nitrile
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: September 28, 2004
    Assignee: Rohm and Haas Company
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Elsie Mae Vickery
  • Recalcined catalyst
    Publication number: 20040181085
    Abstract: A mixed metal oxide, which may be an orthorhombic phase material, is improved as a catalyst for the production of unsaturated carboxylic acids, or unsaturated nitrites, from alkanes, or mixtures of alkanes and alkenes, by: contacting with a liquid contacting member selected from the group consisting of organic acids, alcohols, inorganic acids and hydrogen peroxide to form a contact mixture; recovering insoluble material from the contact mixture; and calcining the recovered insoluble material in a non-oxidizing atmosphere.
    Type: Application
    Filed: March 24, 2004
    Publication date: September 16, 2004
    Inventors: Leonard Edward Bogan, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Ir and/or Sm promoted multi-metal oxide catalyst
    Patent number: 6790988
    Abstract: A catalyst comprising a promoted mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated nitrile.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: September 14, 2004
    Assignee: Rohm and Haas Company
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Single crystalline phase catalyst
    Publication number: 20040176244
    Abstract: An orthorhombic phase mixed metal oxide is produced selectively in quantitative yield.
    Type: Application
    Filed: March 23, 2004
    Publication date: September 9, 2004
    Inventors: Leonard Edward Bogan, Daniel A. Bors, Fernando Antonio Pessoa Cavalcanti, Michael Bruce Clark, Anne Mae Gaffney, Scott Han
  • Halogen promoted multi-metal oxide catalyst
    Patent number: 6747168
    Abstract: A catalyst comprising a promoted mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated nitrile.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: June 8, 2004
    Assignee: Rohm and Haas Company
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Single crystalline phase catalyst
    Patent number: 6740620
    Abstract: An orthorhombic phase mixed metal oxide is produced selectively in quantitative yield.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: May 25, 2004
    Assignee: Rohn and Haas Company
    Inventors: Leonard Edward Bogan, Jr., Daniel A. Bors, Fernando Antonio Pessoa Cavalcanti, Michael Bruce Clark, Jr., Anne Mae Gaffney, Scott Han
  • Processes for the preparation of olefins, unsaturated carboxylic acids and unsaturated nitriles from alkanes
    Publication number: 20040097754
    Abstract: Improved processes for the preparation of olefins, unsaturated carboxylic acids and unsaturated nitrites involve the use of dehydrogenation catalysts suitable for the conversion of alkanes to alkenes and catalysts suitable for the conversion of alkanes and/or alkenes to unsaturated carboxylic acids or unsaturated nitriles.
    Type: Application
    Filed: November 13, 2003
    Publication date: May 20, 2004
    Inventors: Leonard Edward Bogan, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song, Donald Lee Zolotorofe
  • IR and/or SM promoted multi-metal oxide catalyst
    Patent number: 6734136
    Abstract: A catalyst comprising a promoted mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated nitrile.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: May 11, 2004
    Assignee: Rohm and Haas Company
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Methods for producing unsaturated carboxylic acids and unsaturated nitriles
    Patent number: 6710207
    Abstract: Unsaturated carboxylic acids are produced by the vapor phase catalytic oxidation of mixtures of alkenes and alkanes in the presence of a catalyst containing a mixed metal oxide. Similarly, unsaturated nitrites are produced by the vapor phase catalytic oxidation of alkenes or mixtures of alkenes and alkanes and ammonia in the presence of a catalyst containing a mixed metal oxide.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: March 23, 2004
    Assignee: Rohm and Haas Company
    Inventors: Leonard Edward Bogan, Jr., Scott Han, Bradley Anson Jacobs, Frederick William Kaiser, Peter David Klugherz, Manhua Lin, Richard David Link, III., Michael William Linsen
  • Processes for the preparation of olefins, unsaturated carboxylic acids and unsaturated nitriles from alkanes
    Patent number: 6700029
    Abstract: Improved processes for the preparation of olefins, unsaturated carboxylic acids and unsaturated nitrites involve the use of dehydrogenation catalysts suitable for the conversion of alkanes to alkenes and catalysts suitable for the conversion of alkanes and/or alkenes to unsaturated carboxylic acids or unsaturated nitrites.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: March 2, 2004
    Assignee: Rohm and Haas Company
    Inventors: Leonard Edward Bogan, Jr., Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song, Donald Lee Zolotorofe
  • Zn and/or Ga promoted multi-metal oxide catalyst
    Patent number: 6700015
    Abstract: A catalyst comprising a promoted mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated nitrile.
    Type: Grant
    Filed: May 6, 2003
    Date of Patent: March 2, 2004
    Assignee: Rohm and Haas Company
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Dominique Hung Nhu Le