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:
Jun. 16, 2026
Filed:
Sep. 07, 2021
Applicant:
Basf Mobile Emissions Catalysts Llc, Iselin, NJ (US);
Inventors:
Assignee:
BASF Mobile Emissions Catalysts LLC, Iselin, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 23/44 (2006.01); B01D 53/94 (2006.01); B01J 21/04 (2006.01); B01J 21/06 (2006.01); B01J 23/10 (2006.01); B01J 23/46 (2006.01); B01J 35/00 (2006.01); B01J 35/40 (2024.01); B01J 35/56 (2024.01); B01J 37/02 (2006.01); B01J 37/08 (2006.01); F01N 3/10 (2006.01); F01N 3/20 (2006.01); F01N 3/28 (2006.01); F02M 25/10 (2006.01);
U.S. Cl.
CPC ...
B01J 35/19 (2024.01); B01D 53/945 (2013.01); B01D 53/9495 (2013.01); B01J 21/04 (2013.01); B01J 21/066 (2013.01); B01J 23/10 (2013.01); B01J 23/44 (2013.01); B01J 23/464 (2013.01); B01J 35/40 (2024.01); B01J 35/56 (2024.01); B01J 37/0219 (2013.01); B01J 37/0228 (2013.01); B01J 37/0244 (2013.01); B01J 37/0248 (2013.01); B01J 37/088 (2013.01); F01N 3/101 (2013.01); F01N 3/2073 (2013.01); F01N 3/208 (2013.01); F01N 3/2803 (2013.01); F02M 25/10 (2013.01); B01D 2251/202 (2013.01); B01D 2255/1021 (2013.01); B01D 2255/1023 (2013.01); B01D 2255/1025 (2013.01); B01D 2255/2042 (2013.01); B01D 2255/2063 (2013.01); B01D 2255/2065 (2013.01); B01D 2255/20715 (2013.01); B01D 2255/407 (2013.01); B01D 2255/9022 (2013.01); B01D 2255/9032 (2013.01); B01D 2255/9035 (2013.01); B01D 2255/908 (2013.01); B01D 2255/9155 (2013.01); B01D 2257/404 (2013.01); B01D 2257/502 (2013.01); B01D 2257/702 (2013.01); B01D 2258/012 (2013.01); F01N 2370/02 (2013.01); F01N 2510/0684 (2013.01); F01N 2610/04 (2013.01); F01N 2610/1406 (2013.01); F01N 2900/1402 (2013.01); F01N 2900/1404 (2013.01);
Abstract
The disclosure provides a platinum-containing three-way conversion (TWC) catalyst, and a system for treating an exhaust gas stream from a gasoline engine using the TWC catalyst. The system is configured to introduce controlled quantities of hydrogen gas into the exhaust gas stream upstream of the platinum-containing TWC catalyst article during a cold-start period. Further provided are related methods of treating such exhaust streams. Such systems and methods are useful in reducing a level of one or more of hydrocarbons, carbon monoxide, and nitrogen oxide in a gaseous exhaust stream from a gasoline engine.