Patents by Inventor Stef Jules Peter Kerkhofs

Stef Jules Peter Kerkhofs 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).

  • Copper containing MOZ zeolite for selective NOx reduction catalysis
    Patent number: 11154846
    Abstract: The present invention relates to crystalline aluminosilicate comprising a MOZ framework type material. The MOZ framework type material comprises between 0.1 and 12.5 wt-% of copper, calculated as CuO, and one or more alkali and alkaline earth metal cations in an amount of 0.3 to 9 wt.-%, calculated as pure metals. The process for making the copper containing MOZ type zeolites comprises a) preparing a first aqueous reaction mixture comprising a silica source and potassium hydroxide, b) preparing a second reaction mixture comprising an alumina source, potassium hydroxide and a structure-directing agent selected from N,N-1,4-dimethyl-1,4-diazabicyclo-[2.2.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: October 26, 2021
    Assignee: Umicore AG & Co. KG
    Inventors: Michiel De Prins, Johan Adriaan Martens, Elke Jane June Verheyen, Stef Jules Peter Kerkhofs, Sreeprasanth Pulinthanathu Sree, Frank-Walter Schuetze
  • Crystalline zeolites with ERI/CHA intergrowth framework type
    Patent number: 11071970
    Abstract: The present invention relates to crystalline zeolites with an ERI/CHA intergrowth framework type and to a process for making said zeolites. The ERI content of the zeolites ranges from 10 to 85 wt.-%, based on the total weight of ERI and CHA. The zeolites may further comprise 0.1 to 10 wt.-% copper, calculated as CuO, and one or more alkali and alkaline earth metal cations in an amount of 0.1 to 5 wt.-%, calculated as pure metals.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: July 27, 2021
    Assignee: Umicore AG & Co. KG
    Inventors: Sreeprasanth Pulinthanathu Sree, Stef Jules Peter Kerkhofs, Elke Jane June Verheyen, Johan Adriaan Martens, Frank-Walter Schuetze
  • Copper Containing MOZ Zeolite for Selective NOx Reduction Catalysis
    Publication number: 20190358614
    Abstract: The present invention relates to crystalline aluminosilicate comprising a MOZ framework type material. The MOZ framework type material comprises between 0.1 and 12.5 wt-% of copper, calculated as CuO, and one or more alkali and alkaline earth metal cations in an amount of 0.3 to 9 wt.-%, calculated as pure metals. The process for making the copper containing MOZ type zeolites comprises a) preparing a first aqueous reaction mixture comprising a silica source and potassium hydroxide, b) preparing a second reaction mixture comprising an alumina source, potassium hydroxide and a structure-directing agent selected from N,N-1,4-dimethyl-1,4-diazabicyclo-[2.2.
    Type: Application
    Filed: February 9, 2018
    Publication date: November 28, 2019
    Inventors: Michiel De Prins, Johan Adriaan Martens, Elke Jane June Verheyen, Stef Jules Peter Kerkhofs, Sreeprasanth Pulinthanathu Sree, Frank-Walter Schuetze
  • One-pot synthesis of copper containing small-pore zeolites
    Patent number: 10486145
    Abstract: The present invention relates to a process for the manufacture of a copper containing small-pore zeolite which comprises?preparing a reaction mixture comprising a zeolite of the faujasite framework type, Cu-tetraethylenepentamine (Cu-TEPA) and at least one compound M(OH)x, which does not comprise the tetraethylammonium cation and?heating the reaction mixture to form a copper containing small-pore zeolite.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: November 26, 2019
    Assignee: Umicore AG & Co. KG
    Inventors: Johan Adriaan Martens, Sreeprasanth Pulinthanathu Sree, Stef Jules Peter Kerkhofs, Elke Jane June Verheyen, Frank-Walter Schuetze
  • Crystalline Zeolites with ERI/CHA Intergrowth Framework Type
    Publication number: 20190351399
    Abstract: The present invention relates to crystalline zeolites with an ERI/CHA intergrowth framework type and to a process for making said zeolites. The ERI content of the zeolites ranges from 10 to 85 wt.-%, based on the total weight of ERI and CHA. The zeolites may further comprise 0.1 to 10 wt.-% copper, calculated as CuO, and one or more alkali and alkaline earth metal cations in an amount of 0.1 to 5 wt.-%, calculated as pure metals.
    Type: Application
    Filed: November 16, 2017
    Publication date: November 21, 2019
    Inventors: Sreeprasanth Pulinthanathu Sree, Stef Jules Peter Kerkhofs, Elke Jane June Verheyen, Johan Adriaan Martens, Frank-Walter Schuetze
  • One-Pot Synthesis of Copper Containing Small-Pore Zeolites
    Publication number: 20180304242
    Abstract: The present invention relates to a process for the manufacture of a copper containing small-pore zeolite which comprises?preparing a reaction mixture comprising a zeolite of the faujasite framework type, Cu-tetraethylenepentamine (Cu-TEPA) and at least one compound M(OH)x, which does not comprise the tetraethylammonium cation and?heating the reaction mixture to form a copper containing small-pore zeolite.
    Type: Application
    Filed: October 6, 2016
    Publication date: October 25, 2018
    Inventors: Johan Adriaan Martens, Sreeprasanth Pulinthanathu Sree, Stef Jules Peter Kerkhofs, Elke Jane June Verheyen, Frank-Walter Schuetze