Patents by Inventor Kathleen Bethke

Kathleen Bethke 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 ammoxidation of alkanes and olefins
    Patent number: 7186670
    Abstract: A process for the vapor phase ammoxidation of alkanes and olefins with a catalyst of the general empirical formula: VSbaMbQcOx wherein M is at least one element selected from magnesium, aluminum, zirconium, silicon, hafnium, titanium and niobium, Q is at least one element selected from rhenium, tungsten, molybdenum, tantalum, manganese, phosphorus, cerium, tin, boron, scandium, bismuth, gallium, indium, iron, chromium, lanthanum, yttrium, zinc, cobalt, nickel, cadmium, copper, strontium, barium, calcium, silver, potassium, sodium and cesium, a is 0.5 to 20, b is 2 to 50, c is 0 to 10 and x is determined by the valence requirements of the elements present. The process has a co-feed of gaseous carbon dioxide with an alkane (paraffin) and/or alkene, ammonia and an oxygen-containing gas which react in the presence of the catalyst to form a nitrile and by-products.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: March 6, 2007
    Assignee: Saudi Basic Industries Corporation
    Inventors: Edouard A. Mamedov, Kathleen A. Bethke, Shahid N. Shaikh, Armando Araujo, Neeta K. Kulkarni
  • Process for the ammoxidation of alkanes and olefins
    Publication number: 20060069279
    Abstract: A process for the vapor phase ammoxidation of alkanes and olefins with a catalyst of the general empirical formula: VSbaMbQcOx wherein M is at least one element selected from magnesium, aluminum, zirconium, silicon, hafnium, titanium and niobium, Q is at least one element selected from rhenium, tungsten, molybdenum, tantalum, manganese, phosphorus, cerium, tin, boron, scandium, bismuth, gallium, indium, iron, chromium, lanthanum, yttrium, zinc, cobalt, nickel, cadmium, copper, strontium, barium, calcium, silver, potassium, sodium and cesium, a is 0.5 to 20, b is 2 to 50, c is 0 to 10 and x is determined by the valence requirements of the elements present. The process has a co-feed of gaseous carbon dioxide with an alkane (paraffin) and/or alkene, ammonia and an oxygen-containing gas which react in the presence of the catalyst to form a nitrile and by-products.
    Type: Application
    Filed: September 30, 2004
    Publication date: March 30, 2006
    Inventors: Edouard Mamedov, Kathleen Bethke, Shahid Shaikh, Armando Araujo, Neeta Kulkarni
  • Catalyst compositions for the ammoxidation of alkanes and olefins, methods of making and of using same
    Patent number: 6710011
    Abstract: A catalyst composition for the vapor phase ammoxidation of alkanes and olefins of the general empirical formulae: VSbaMbOx VSbaMbM′b′Ox VSbaMbQcOx VSbaMbQcQ′c′Ox wherein M and M′ are at least one element selected from magnesium, aluminum, zirconium, silicon, hafnium, titanium and niobium, M and M′ being different, Q and Q′ are at least one element selected from rhenium, tungsten, molybdenum, tantalum, manganese, phosphorus, cerium, tin, boron, scandium, bismuth, gallium, indium, iron, chromium, lanthanum, yttrium, zinc, cobalt, nickel, cadmium, copper, strontium, barium, calcium, silver, potassium, sodium and cesium, Q and Q′ being different, a is 0.5 to 20, b is 2 to 50, b′ is 0 to 50, c is 0 to 10, c′ is 0 to 10 and x is determined by the valence requirements of the elements present.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: March 23, 2004
    Assignee: Saudi Basic Industries Corporatioin
    Inventors: Edouard A. Mamedov, Kathleen A. Bethke, Shahid N. Shaikh, Armando Araujo, Neeta K. Kulkarni, Andrei Khodakov
  • Catalyst compositions for the ammoxidation of alkanes and olefins, methods of making and of using same
    Publication number: 20030144539
    Abstract: A catalyst composition for the vapor phase ammoxidation of alkanes and olefins of the general empirical formulae:
    Type: Application
    Filed: December 21, 2001
    Publication date: July 31, 2003
    Applicant: Saudi Basic Industries Corporation (SABIC)
    Inventors: Edouard A. Mamedov, Kathleen A. Bethke, Shahid N. Shaikh, Armando Araujo, Neeta K. Kulkarni, Andrei Khodakov