ClassID:

137857

F01N3/2093 - CPC Classification

Classification description:

Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters Periodically blowing a gas through the converter, e.g. in a direction opposite to exhaust gas flow or by reversing exhaust gas flow direction

Recent Application in this class:
#1
20250376149
2025-12-11

EMISSIONS MANAGEMENT FOR DIESEL SERIES HYBRID POWERTRAINS

#2
20230175423
2023-06-08

Exhaust after treatment system and method for pre-heating a catalytic converter

#3
20230167759
2023-06-01

Method and system for sensor analysis in an exhaust gas aftertreatment system

#4
20220381173
2022-12-01

Method of detecting a need for regeneration of an exhaust particulate filter, and exhaust system

#5
20220251989
2022-08-11

Method for operating an exhaust gas cleaning system arranged in the exhaust line of an internal combustion engine, and exhaust gas cleaning system

#6
20210239024
2021-08-05

EXHAUST-GAS SYSTEM

#7
20200370458
2020-11-26

Method and system of controlling oxygen purge of three-way catalyst

#8
20200180630
2020-06-11

Power-train controlling apparatus and method of controlling power train

#9
20200122086
2020-04-23

Emission control system

#10
20190120180
2019-04-25

Systems and methods for particulate filter cleaning

#11
20190101038
2019-04-04

A CONTROL SYSTEM AND A METHOD FOR CONTROLLING THE EXHAUST GAS FLOW IN AN EXHAUST LINE OF A COMBUSTION ENGINE

#12
20190053677
2019-02-21

Cleaning tool for vehicle exhaust aftertreatment device and method of using same

#13
20180334941
2018-11-22

Engine system

#14
20170145884
2017-05-25

Exhaust purification device

#15
20160312721
2016-10-27

Method for regenerating a NOstorage catalytic converter

#16
20160053643
2016-02-25

Multi-lobed soot blower

#17
20150258495
2015-09-17

Exhaust gas purification device

#18
20150071828
2015-03-12

Exhaust mixing assembly

#19
20150071825
2015-03-12

Exhaust mixing device

#20
20140334987
2014-11-13

Axial flow atomization module

#21
20140334986
2014-11-13

Axial flow atomization module

#22
20140227138
2014-08-14

Method for removing foreign matter from a selective reduction catalyst system

#23
20130247545
2013-09-26

Exhaust aftertreatment system for internal combustion engine

#24
20120198821
2012-08-09

Devices, systems and methods for reducing an emission from a combustion reaction

#25
20120023907
2012-02-02

System and method for processing NHD slippage of a selective catalyst reduction system

#26
20110258991
2011-10-27

Selective catalyst reduction system with bypass system

#27
20110005208
2011-01-13

METHOD OF CLEANING A CATALYTIC CONVERTER

#28
20100205936
2010-08-19

EXHAUST GAS-PURIFYING APPARATUS AND EXHAUST GAS-PURIFYING METHOD

#29
20090308060
2009-12-17

Process for purifying exhaust gases and apparatus for purifying exhaust gases

#30
20080289322
2008-11-27

Exhaust purification device for internal combustion engine, and exhaust control device and exhaust control method for internal combustion engine

#31
20080289321
2008-11-27

Exhaust after-treatment system with flow control for optimum temperature conditions

#32
20080152564
2008-06-26

Method and apparatus for catalyst regeneration

#33
20080134670
2008-06-12

Internal combustion engine with an exhaust emission control system

#34
20080066451
2008-03-20

Exhaust treatment packaging apparatus, system, and method

#35
20080028748
2008-02-07

Method for controlling exhaust gas flow and temperature through regenerable exhaust gas treatment devices

#36
20070294999
2007-12-27

Exhaust gas purification apparatus and exhaust gas purification method for internal combustion engine

#37
20070214777
2007-09-20

Methods of controlling reductant addition

#38
20060283173
2006-12-21

Further improved reversing flow catalytic converter for internal combustion engines

#39
20060266025
2006-11-30

Reversing flow catalytic converter for internal combustion engines

#40
20060254263
2006-11-16

Flow reversal in exhaust system including filter

#41
20060213189
2006-09-28

Treatment of nox sorber regeneration gas

#42
20060156919
2006-07-20

Filter service system and method

#43
20060144223
2006-07-06

Deposition system and method

#44
20060101812
2006-05-18

Exhaust catalyst system

#45
20060096281
2006-05-11

Exhaust system and method for controlling exhaust gas flow and temperature through regenerable exhaust gas treatment devices

#46
20060059899
2006-03-23

Apparatus and method for filtering particulate and NOx emissions

#47
20060053776
2006-03-16

Management of thermal fluctuations in lean NOx adsorber aftertreatment systems

#48
20050284139
2005-12-29

Filter system

#49
18756502
2025-10-07

Work vehicle and aftertreatment system therefor

#50
18118290
2024-05-28

Logic for improved delta pressure based soot estimation on low restriction particulate filters

#51
18118287
2024-01-09

Logic for improved delta pressure based soot estimation on low restriction particulate filters

#52
15675307
2018-12-18

Systems and methods for particulate filter cleaning