The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2025
Filed:
Sep. 24, 2020
Basf Mobile Emissions Catalysts Llc, Iselin, NJ (US);
Eduard L. Kunkes, Iselin, NJ (US);
Karl C. Kharas, Iselin, NJ (US);
BASF Mobile Emissions Catalysts LLC, Iselin, NJ (US);
Abstract
The present disclosure provides catalyst compositions capable of reducing nitrogen oxide (NO) emissions in engine exhaust. The catalyst compositions include metal ion-exchanged zeolites having a domain size of less than about 1500 Ångstroms (Å), a crystallographic strain of less than about 0.7%, or both. Further provided are catalyst articles coated with such compositions, processes for preparing such catalyst compositions and articles, an exhaust gas treatment system including such catalytic articles, and methods for reducing NOin an exhaust gas stream using such catalytic articles and systems.