Patents by Inventor Erich Conlan Weigert
Erich Conlan 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).
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Patent number: 10221742Abstract: A CO slip catalyst, for treating an exhaust gas from a lean burn internal combustion engine, is disclosed. The CO slip catalyst comprises palladium and a ceria-containing material. The invention also includes a method for oxidizing excess CO in an exhaust gas, wherein the excess CO results from the periodic contact of an upstream catalyst under rich exhaust conditions. The method comprises contacting the excess CO in the exhaust gas with a CO slip catalyst at a temperature in the range of 100 to 700° C.Type: GrantFiled: June 23, 2017Date of Patent: March 5, 2019Assignee: Johnson Matthey Public Limited CompanyInventors: Todd Howard Ballinger, Hai-Ying Chen, Julian Peter Cox, Shadab Sharif Mulla, Jeffery Scott Rieck, Erich Conlan Weigert
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Patent number: 10173173Abstract: Provided is an ammonia slip catalyst article having supported palladium in a top or upstream layer for oxidation of carbon monoxide and/or hydrocarbons, an SCR catalyst either in the top layer or in a separate lower or downstream layer, and an ammonia oxidation catalyst in a bottom layer. Also provided are methods for treating an exhaust gas using the catalyst article, wherein the treatment involves reducing the concentrations of ammonia and optionally carbon monoxide and/or hydrocarbons in the exhaust gas.Type: GrantFiled: February 2, 2017Date of Patent: January 8, 2019Assignee: Johnson Matthey Public Limited CompanyInventors: Paul Joseph Andersen, Hai-Ying Chen, Julian Peter Cox, Kevin Doura, Joseph Michael Fedeyko, Erich Conlan Weigert
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Publication number: 20170284262Abstract: A CO slip catalyst, for treating an exhaust gas from a lean burn internal combustion engine, is disclosed. The CO slip catalyst comprises palladium and a ceria-containing material. The invention also includes a method for oxidizing excess CO in an exhaust gas, wherein the excess CO results from the periodic contact of an upstream catalyst under rich exhaust conditions. The method comprises contacting the excess CO in the exhaust gas with a CO slip catalyst at a temperature in the range of 100 to 700° C.Type: ApplicationFiled: June 23, 2017Publication date: October 5, 2017Inventors: TODD HOWARD BALLINGER, HAI-YING CHEN, JULIAN PETER COX, SHADAB SHARIF MULLA, JEFFREY SCOTT RIECK, ERICH CONLAN WEIGERT
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Publication number: 20170189854Abstract: Provided is an ammonia slip catalyst article having supported palladium in a top or upstream layer for oxidation of carbon monoxide and/or hydrocarbons, an SCR catalyst either in the top layer or in a separate lower or downstream layer, and an ammonia oxidation catalyst in a bottom layer. Also provided are methods for treating an exhaust gas using the catalyst article, wherein the treatment involves reducing the concentrations of ammonia and optionally carbon monoxide and/or hydrocarbons in the exhaust gas.Type: ApplicationFiled: February 2, 2017Publication date: July 6, 2017Inventors: Paul Joseph Andersen, Hai-Ying Chen, Julian Peter Cox, Kevin Doura, Joseph Michael Fedeyko, Erich Conlan Weigert
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Patent number: 9694349Abstract: A CO slip catalyst, for treating an exhaust gas from a lean burn internal combustion engine, is disclosed. The CO slip catalyst comprises palladium and a ceria-containing material. The invention also includes a method for oxidizing excess CO in an exhaust gas, wherein the excess CO results from the periodic contact of an upstream catalyst under rich exhaust conditions. The method comprises contacting the excess CO in the exhaust gas with a CO slip catalyst at a temperature in the range of 100 to 700° C.Type: GrantFiled: January 19, 2016Date of Patent: July 4, 2017Assignee: Johnson Matthey Public Limited CompanyInventors: Erich Conlan Weigert, Shadab Sharif Mulla, Todd Howard Ballinger, Jeffery Scott Rieck, Julian Peter Cox, Hai-Ying Chen
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Patent number: 9579638Abstract: Provided is an ammonia slip catalyst article having supported palladium in a top or upstream layer for oxidation of carbon monoxide and/or hydrocarbons, an SCR catalyst either in the top layer or in a separate lower or downstream layer, and an ammonia oxidation catalyst in a bottom layer. Also provided are methods for treating an exhaust gas using the catalyst article, wherein the treatment involves reducing the concentrations of ammonia and optionally carbon monoxide and/or hydrocarbons in the exhaust gas.Type: GrantFiled: July 30, 2014Date of Patent: February 28, 2017Assignee: Johnson Matthey Public Limited CompanyInventors: Joseph Michael Fedeyko, Kevin Doura, Erich Conlan Weigert, Julian Peter Cox, Hai-Ying Chen, Paul Joseph Andersen
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Publication number: 20160129422Abstract: A CO slip catalyst, for treating an exhaust gas from a lean burn internal combustion engine, is disclosed. The CO slip catalyst comprises palladium and a ceria-containing material. The invention also includes a method for oxidizing excess CO in an exhaust gas, wherein the excess CO results from the periodic contact of an upstream catalyst under rich exhaust conditions. The method comprises contacting the excess CO in the exhaust gas with a CO slip catalyst at a temperature in the range of 100 to 700° C.Type: ApplicationFiled: January 19, 2016Publication date: May 12, 2016Inventors: Erich Conlan Weigert, Shadab Sharif Mulla, Todd Howard Ballinger, Jeffery Scott Rieck, Julian Peter Cox, Hai-Ying Chen
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Patent number: 9266064Abstract: A CO slip catalyst, for treating an exhaust gas from a lean burn internal combustion engine, is disclosed. The CO slip catalyst comprises palladium and a ceria-containing material. The invention also includes a method for oxidizing excess CO in an exhaust gas, wherein the excess CO results from the periodic contact of an upstream catalyst under rich exhaust conditions. The method comprises contacting the excess CO in the exhaust gas with a CO slip catalyst at a temperature in the range of 100 to 700° C.Type: GrantFiled: August 28, 2014Date of Patent: February 23, 2016Assignee: Johnson Matthey PLCInventors: Erich Conlan Weigert, Shadab Sharif Mulla, Todd Howard Ballinger, Jeffery Scott Rieck, Julian Peter Cox, Hai-Ying Chen
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Publication number: 20150064085Abstract: A CO slip catalyst, for treating an exhaust gas from a lean burn internal combustion engine, is disclosed. The CO slip catalyst comprises palladium and a ceria-containing material. The invention also includes a method for oxidizing excess CO in an exhaust gas, wherein the excess CO results from the periodic contact of an upstream catalyst under rich exhaust conditions. The method comprises contacting the excess CO in the exhaust gas with a CO slip catalyst at a temperature in the range of 100 to 700° C.Type: ApplicationFiled: August 28, 2014Publication date: March 5, 2015Inventors: ERICH CONLAN WEIGERT, SHADAB SHARIF MULLA, TODD HOWARD BALLINGER, JEFFERY SCOTT RIECK, JULIAN PETER COX, HAI-YING CHEN
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Publication number: 20150064074Abstract: A catalyst composition is provided wherein the composition includes a zeolite having a non-phosphorous CHA crystal structure and having a mean crystalline size of about 1 to about 5 microns; and at least one non-aluminum base metal present in an amount sufficient to achieve a NOx conversion of at least about 65% at a temperature of at least 450° C.Type: ApplicationFiled: November 11, 2014Publication date: March 5, 2015Inventors: Todd Howard BALLINGER, Philip Gerald BLAKEMAN, Guy Richard CHANDLER, Hai-Ying CHEN, Julian Peter COX, Joseph Michael FEDEYKO, Alexander Nicholas Michael GREEN, Paul Richard PHILLIPS, Stuart David REID, Erich Conlan WEIGERT, James Alexander WYLIE
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Publication number: 20150037233Abstract: Provided is an ammonia slip catalyst article having supported palladium in a top or upstream layer for oxidation of carbon monoxide and/or hydrocarbons, an SCR catalyst either in the top layer or in a separate lower or downstream layer, and an ammonia oxidation catalyst in a bottom layer. Also provided are methods for treating an exhaust gas using the catalyst article, wherein the treatment involves reducing the concentrations of ammonia and optionally carbon monoxide and/or hydrocarbons in the exhaust gas.Type: ApplicationFiled: July 30, 2014Publication date: February 5, 2015Inventors: Joseph Michael Fedeyko, Kevin Doura, Erich Conlan Weigert, Julian Peter Cox, Hai-Ying Chen, Paul Joseph Andersen
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Patent number: 8906329Abstract: A catalyst composition is provided having a zeolite material of a CHA crystal structure and a silica to alumina mole ratio (SAR) of about 10 to about 25 and preferably having a mean crystal size of at least 1.0 microns; and a non-aluminum base metal (M), wherein said zeolite material contains said base metal in a base metal to aluminum ratio (M:Al) of about 0.10 to about 0.24.Type: GrantFiled: August 14, 2013Date of Patent: December 9, 2014Assignee: Johnson Matthey Public Limited CompanyInventors: 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 Conlan Weigert, James Alexander Wylie
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Publication number: 20140037523Abstract: A catalyst composition is provided having a zeolite material of a CHA crystal structure and a silica to alumina mole ratio (SAR) of about 10 to about 25 and preferably having a mean crystal size of at least 1.0 microns; and a non-aluminum base metal (M), wherein said zeolite material contains said base metal in a base metal to aluminum ratio (M:Al) of about 0.10 to about 0.24.Type: ApplicationFiled: August 14, 2013Publication date: February 6, 2014Applicant: Johnson Matthey Public Limited CompanyInventors: 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 Conlan Weigert, James Alexander Wylie
