ClassID:

137965

F01N2230/02 - CPC Classification

Classification description:

Combination of silencers and other devices Exhaust filters

Recent Application in this class:
#1
20260146552
2026-05-28

MULTI-STAGE EMISSION SYSTEM FOR LARGE DISPLACEMENT COMPRESSION IGNITION NON-ROAD DIESEL GENERATOR SYSTEMS FOR EMERGENCY AND NON-EMERGENCY STATIONARY POWER APPLICATIONS

#2
20250367603
2025-12-04

TWO-LAYER, THREE-WAY CATALYST WITH SIGNIFICANTLY IMPROVED CO CONVERSION

#3
20240151171
2024-05-09

Control device and method for controlling an exhaust gas aftertreatment system

#4
20200173320
2020-06-04

ACOUSTIC VOLUME IN HOT-END OF EXHAUST SYSTEMS

#5
20200088077
2020-03-19

SILENCER FOR AN EXHAUST GAS SYSTEM OF A MOTOR VEHICLE AND MOTOR VEHICLE WITH A SILENCER

#6
20200072114
2020-03-05

Exhaust purification system of internal combustion engine

#7
20190093528
2019-03-28

Method and apparatus to enable package space reduction in a vehicle exhaust system

#8
20180258824
2018-09-13

Vehicle comprising a dual-branch exhaust system

#9
20170314434
2017-11-02

Exhaust gas aftertreatment device and exhaust gas aftertreatment method

#10
20170122160
2017-05-04

Muffler integrated type gasoline particulate filter

#11
20170016366
2017-01-19

Exhaust gas filter

#12
20150107458
2015-04-23

Particle filter

#13
20150086804
2015-03-26

Conical honeycomb body having channels extending radially outward at an angle and honeycomb body assembly

#14
20140102300
2014-04-17

Low pressure drop, high efficiency spark or particulate arresting devices and methods of use

#15
20130047841
2013-02-28

DEVICE FOR DIAGNOSING A PARTICLE FILTER

#16
20130047590
2013-02-28

Radial mounting for regeneration device

#17
20120012419
2012-01-19

Exhaust device

#18
20110180344
2011-07-28

Travel vehicle-mounted engine device

#19
20110146248
2011-06-23

Radial mounting for regeneration device

#20
20110088966
2011-04-21

Silencer apparatus with disposable silencer cartridge unit

#21
20100186395
2010-07-29

Apparatus for cooling overheated gas in engine room

#22
20100170743
2010-07-08

High-performance muffler assembly with multiple modes of operation

#23
20090272107
2009-11-05

Exhaust gas purification apparatus for internal combustion engine

#24
20090200105
2009-08-13

Silencer apparatus with disposable silencer cartridge unit

#25
20090031717
2009-02-05

Exhaust flow distribution device

#26
20080229734
2008-09-25

System for Purifying the Exhaust Gases Emitted by Internal Combustion Engines

#27
20070227807
2007-10-04

High-performance muffler assembly with multiple modes of operation

#28
20070144126
2007-06-28

Exhaust emission control device

#29
20070137188
2007-06-21

Exhaust emission control device

#30
20070119155
2007-05-31

Support structure for muffler

#31
20070039316
2007-02-22

Compact combination exhaust muffler and aftertreatment element and water trap assembly

#32
20060260867
2006-11-23

Silencer containing one or more porous bodies

#33
20060150810
2006-07-13

Gas cleaning devices

#34
20060070375
2006-04-06

Exhaust flow distribution device

#35
15046891
2017-04-18

Multi-muffler sound attenuator assembly