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US Patent 10005075 Passive NO

Patent 10005075 was granted and assigned to Johnson Matthey on June, 2018 by the United States Patent and Trademark Office.

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Is a

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Patent attributes

Patent Applicant

Johnson Matthey

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Current Assignee

Johnson Matthey

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Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

Patent Inventor Names

Dongxia Liu0

Hai-Ying Chen0

Raj Rao Rajaram0

Date of Patent

June 26, 2018

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Patent Application Number

145633400

Date Filed

December 8, 2014

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Patent Citations Received

US Patent 11857925 Single brick SCR/ASC/PNA/DOC close-coupled catalyst

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US Patent 11071966 High-capacity, low-temperature, passive NOx and cd adsorbers and methods for making same

US Patent 11359530 Exhaust system comprising a passive NO

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Patent Primary Examiner

Timothy C. Vanoy

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Patent abstract

A passive NOx adsorber is disclosed. The passive NOx adsorber is effective to adsorb NOx at or below a low temperature and release the adsorbed NOx at temperatures above the low temperature. The passive NOx adsorber comprises a noble metal and a small pore molecular sieve. The small pore molecular sieve has a maximum ring size of eight tetrahedral atoms. The invention also includes an exhaust system comprising the passive NOx adsorber, and a method for treating exhaust gas from an internal combustion engine utilizing the passive NOx adsorber.

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