Patents by Inventor Michele Doreen Heffner

Michele Doreen Heffner 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).

  • Ir and/or Sm promoted multi-metal oxide catalyst
    Publication number: 20030204111
    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: Application
    Filed: May 7, 2003
    Publication date: October 30, 2003
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Halogen promoted multi-metal oxide catalyst
    Patent number: 6624111
    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 22, 2002
    Date of Patent: September 23, 2003
    Assignee: Rohm and Haas Company
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Halogen promoted multi-metal oxide catalyst
    Publication number: 20030176734
    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: Application
    Filed: May 22, 2003
    Publication date: September 18, 2003
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Processes for the preparation of olefins, unsaturated carboxylic acids and unsaturated nitriles from alkanes
    Publication number: 20030109749
    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: December 2, 2002
    Publication date: June 12, 2003
    Inventors: Leonard Edward Bogan, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song, Donald Lee Zolotorofe
  • Promoted multi-metal oxide catalyst
    Patent number: 6504053
    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 14, 2002
    Date of Patent: January 7, 2003
    Assignee: Rohm and Haas Company
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song, Dominique Hung Nhu Le, Elsie Mae Vickery
  • Recalcined catalyst
    Publication number: 20020188149
    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: April 8, 2002
    Publication date: December 12, 2002
    Inventors: Leonard Edward Bogan, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Annealed and promoted catalyst
    Publication number: 20020183198
    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 contact 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; calcining the recovered insoluble material in a non-oxidizing atmosphere; admixing the calcined recovered insoluble material with (i) at least one promoter element or compound thereof and (ii) at least one solvent for the at least one promoter element or compound thereof; removing the at least one solvent to form a catalyst precursor; and calcining the catalyst precursor.
    Type: Application
    Filed: April 8, 2002
    Publication date: December 5, 2002
    Inventors: Anne Mae Gaffney, Michele Doreen Heffner, Ruozhi Song
  • Halogen promoted multi-metal oxide catalyst
    Patent number: 6461996
    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: October 8, 2002
    Assignee: Rohm and Haas Company
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Promoted multi-metal oxide catalyst
    Publication number: 20020143208
    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: Application
    Filed: March 12, 2002
    Publication date: October 3, 2002
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Promoted multi-metal oxide catalyst
    Patent number: 6407280
    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: June 18, 2002
    Assignee: Rohm and Haas Company
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song, Dominique Hung Nhu Le, Elsie Mae Vickery
  • Promoted multi-metal oxide catalyst
    Patent number: 6407031
    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 11, 2001
    Date of Patent: June 18, 2002
    Assignee: Rohm and Haas Company
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Promoted multi-metal oxide catalyst
    Publication number: 20020065431
    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: Application
    Filed: August 10, 2001
    Publication date: May 30, 2002
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song, Dominique Hung Nhu Le, Elsie Mae Vickery
  • PROMOTED MULTI-METAL OXIDE CATALYST
    Publication number: 20020062042
    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: Application
    Filed: August 11, 2001
    Publication date: May 23, 2002
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Ir and/or Sm promoted multi-metal oxide catalyst
    Publication number: 20020062038
    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: Application
    Filed: August 10, 2001
    Publication date: May 23, 2002
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Halogen promoted multi-metal oxide catalyst
    Publication number: 20020058835
    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: Application
    Filed: August 10, 2001
    Publication date: May 16, 2002
    Inventors: Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song
  • Calcination
    Publication number: 20020038052
    Abstract: A process for preparing a catalyst is disclosed. The catalyst is useful for the gas phase oxidation of alkanes to unsaturated aldehydes or carboxylic acids or for the ammoxidation of alkanes to unsaturated nitrites.
    Type: Application
    Filed: September 11, 2001
    Publication date: March 28, 2002
    Inventors: Leonard Edward Bogan,, Michele Doreen Heffner, Bradley Anson Jacobs, Richard David Link, III, Elsie Mae Vickery