Patents by Inventor Erich C. Weigert

Erich C. Weigert 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).

  • Zeolite catalyst containing metal
    Patent number: 8535629
    Abstract: Provided is a catalyst comprising (a) a zeolite material having a mean crystal size of at least about 0.5 ?m, having a CHA framework that contains silicon and aluminum, and having a silica-to-alumina mole ratio (SAR) of about 10 to about 25; and (b) an extra-framework promoter metal (M) disposed in said zeolite material as free and/or exchanged metal, wherein the extra-framework promoter metal is copper, iron, and mixtures thereof, and is present in a promoter metal-to-aluminum atomic ratio (M:Al) of about 0.10 to about 0.24 based on the framework aluminum; and optionally comprising (c) at least about 1 weight percent of cerium in said zeolite material, based on the total weight of the zeolite, wherein said cerium is present in a form selected from exchanged cerium ions, monomeric ceria, oligomeric ceria, and combinations thereof, provided that said oligomeric ceria has a particle size of less than 5 ?m.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: September 17, 2013
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Todd Howard Ballinger, Philip Gerald Blakeman, Guy Richard Chandler, Hai-Ying Chen, Julian Peter Cox, Joseph M. Fedeyko, Alexander Nicholas Michael Green, Paul Richard Phillips, Stuart David Reid, Erich C. Weigert, James Alexander Wylie
  • ZEOLITE CATALYST CONTAINING METAL
    Publication number: 20120201731
    Abstract: Provided is a catalyst comprising (a) a zeolite material having a mean crystal size of at least about 0.5 ?m, having a CHA framework that contains silicon and aluminum, and having a silica-to-alumina mole ratio (SAR) of about 10 to about 25; and (b) an extra-framework promoter metal (M) disposed in said zeolite material as free and/or exchanged metal, wherein the extra-framework promoter metal is copper, iron, and mixtures thereof, and is present in a promoter metal-to-aluminum atomic ratio (M:Al) of about 0.10 to about 0.24 based on the framework aluminum; and optionally comprising (c) at least about 1 weight percent of cerium in said zeolite material, based on the total weight of the zeolite, wherein said cerium is present in a form selected from exchanged cerium ions, monomeric ceria, oligomeric ceria, and combinations thereof, provided that said oligomeric ceria has a particle size of less than 5 ?m.
    Type: Application
    Filed: December 2, 2011
    Publication date: August 9, 2012
    Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
    Inventors: Todd Howard Ballinger, Philip Gerald Blakeman, Guy Richard Chandler, Hai-Ying Chen, Julian Peter Cox, Joseph M. Fedeyko, Alexander Nicholas Michael Green, Paul Richard Phillips, Stuart David Reid, Erich C. Weigert, James Alexander Wylie