Patents by Inventor Sanjay Chaturvedi

Sanjay Chaturvedi 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).

  • Process for the selective (amm)oxidation of lower molecular weight alkanes and alkenes
    Patent number: 7553986
    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: Grant
    Filed: November 19, 2004
    Date of Patent: June 30, 2009
    Assignee: Rohm and Haas Company
    Inventors: Leonard Edward Bogan, Jr., Fernando A. P. Cavalcanti, Nitin Chadda, Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Peter D. Klugherz, Daniel Martenak, Mark Anthony Silvano, Elsie Mae Vickery, Donald L. Zolotorofe
  • Method of forming an electrode structure useful in energy storage devices
    Patent number: 7419745
    Abstract: The present invention relates to a method for forming an electrode structure useful in energy storage devices, which method involves the spray deposition of a mixture of carbon and a binder on a current collector. In addition, the present invention relates to energy storage devices including an electrode structure produced using a spray deposition method to deposit a mixture of carbon and a binder on a current collector.
    Type: Grant
    Filed: February 9, 2005
    Date of Patent: September 2, 2008
    Inventors: Sanjay Chaturvedi, William Joseph Grieco, Eric Gustave Lundquist
  • Modified catalysts and process
    Patent number: 7304014
    Abstract: Modified metal oxide catalysts are disclosed which have different chemical, physical and catalytic properties, when used for catalytic conversions of carbon based compounds, as compared to corresponding unmodified metal oxide catalysts. Methods for preparing the modified catalysts are described and their utility in catalytic process is described. Alkenes, unsaturated saturated carboxylic acids, saturated carboxylic acids and their higher analogues are prepared directly from corresponding alkanes, alkenes or alkanes and alkenes utilizing using one or more modified metal oxide catalysts.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: December 4, 2007
    Assignee: Rohm and Haas Company
    Inventors: Fernando Antonio Pessoa Cavalcanti, Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Ruozhi Song, Elsie Mae Vickery
  • PVD supported mixed metal oxide catalyst
    Patent number: 6984750
    Abstract: A supported catalyst comprising a 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: June 12, 2003
    Date of Patent: January 10, 2006
    Assignee: Rohm and Haas Company
    Inventors: Sanjay Chaturvedi, Jingguang Chen, Michael Bruce Clark, Jr., Anne Mae Gaffney
  • Treatment of mixed metal oxide catalyst
    Patent number: 6982343
    Abstract: A catalyst comprising a 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. The catalyst is treated with a source of hydrogen, an alcohol, a source of NOx or a mixture thereof.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: January 3, 2006
    Assignee: Rohm and Haas Company
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Dominique Hung Nhu Le
  • Method of forming an electrode structure useful in energy storage devices
    Publication number: 20050220989
    Abstract: The present invention relates to a method for forming an electrode structure useful in energy storage devices, which method involves the spray deposition of a mixture of carbon and a binder on a current collector. In addition, the present invention relates to energy storage devices including an electrode structure produced using a spray deposition method to deposit a mixture of carbon and a binder on a current collector.
    Type: Application
    Filed: February 9, 2005
    Publication date: October 6, 2005
    Inventors: Sanjay Chaturvedi, William Grieco, Eric Lundquist
  • Modified catalysts and process
    Publication number: 20050202964
    Abstract: Modified metal oxide catalysts are disclosed which have different chemical, physical and catalytic properties, when used for catalytic conversions of carbon based compounds, as compared to corresponding unmodified metal oxide catalysts. Methods for preparing the modified catalysts are described and their utility in catalytic process is described. Alkenes, unsaturated saturated carboxylic acids, saturated carboxylic acids and their higher analogues are prepared directly from corresponding alkanes, alkenes or alkanes and alkenes utilizing using one or more modified metal oxide catalysts.
    Type: Application
    Filed: March 3, 2005
    Publication date: September 15, 2005
    Inventors: Fernando Antonio Cavalcanti, Sanjay Chaturvedi, Anne Gaffney, Scott Han, Ruozhi Song, Elsie Vickery
  • Modified catalysts and process
    Publication number: 20050203309
    Abstract: Modified metal oxide catalysts are disclosed which have different chemical, physical and catalytic properties, when used for catalytic conversions of carbon based compounds, as compared to corresponding unmodified metal oxide catalysts. Methods for preparing the modified catalysts are described and their utility in catalytic process is described. Alkenes, unsaturated saturated carboxylic acids, saturated carboxylic acids and their higher analogues are prepared directly from corresponding alkanes, alkenes or alkanes and alkenes utilizing using one or more modified metal oxide catalysts.
    Type: Application
    Filed: March 3, 2005
    Publication date: September 15, 2005
    Inventors: Fernando Cavalcanti, Sanjay Chaturvedi, Anne Gaffmey, Scott Han, Ruozhi Song, Elsie Vickery
  • Modified catalysts and process
    Publication number: 20050202965
    Abstract: Modified metal oxide catalysts are disclosed which have different chemical, physical and catalytic properties, when used for catalytic conversions of carbon based compounds, as compared to corresponding unmodified metal oxide catalysts. Methods for preparing the modified catalysts are described and their utility in catalytic process is described. Alkenes, unsaturated saturated carboxylic acids, saturated carboxylic acids and their higher analogues are prepared directly from corresponding alkanes, alkenes or alkanes and alkenes utilizing using one or more modified metal oxide catalysts.
    Type: Application
    Filed: March 3, 2005
    Publication date: September 15, 2005
    Inventors: Fernando Cavalcanti, Sanjay Chaturvedi, Anne Gaffney, Scott Han, Ruozhi Song, Elsie Vickery
  • Modified catalysts and process
    Publication number: 20050203312
    Abstract: Modified metal oxide catalysts are disclosed which have different chemical, physical and catalytic properties, when used for catalytic conversions of carbon based compounds, as compared to corresponding unmodified metal oxide catalysts. Methods for preparing the modified catalysts are described and their utility in catalytic process is described. Alkenes, unsaturated saturated carboxylic acids, saturated carboxylic acids and their higher analogues are prepared directly from corresponding alkanes, alkenes or alkanes and alkenes utilizing using one or more modified metal oxide catalysts.
    Type: Application
    Filed: March 3, 2005
    Publication date: September 15, 2005
    Inventors: Fernando Pessoa Cavalcanti, Sanjay Chaturvedi, Anne Gaffney, Scott Han, Ruozhi Song, Elsie Vickery
  • 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
  • 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
  • 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
  • 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
  • Mixed metal oxide catalyst
    Patent number: 6777571
    Abstract: A catalyst comprising a 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 7, 2003
    Date of Patent: August 17, 2004
    Assignee: Rohm and Haas Company
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Ruozhi Song, Elsie Mae Vickery
  • 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
  • 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
  • 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
  • Mixed metal oxide catalyst
    Publication number: 20040030202
    Abstract: A catalyst comprising a 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: Application
    Filed: August 7, 2003
    Publication date: February 12, 2004
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Ruozhi Song, Elsie Mae Vickery
  • PVD supported mixed metal oxide catalyst
    Publication number: 20030236163
    Abstract: A supported catalyst comprising a 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: Application
    Filed: June 12, 2003
    Publication date: December 25, 2003
    Inventors: Sanjay Chaturvedi, Jingguang Chen, Michael Bruce Clark, Anne Mae Gaffney