Patents-Review.com
ClassID:

138131 ⎘

F01N2490/02 - CPC Classification

Classification description:

Structure, disposition or shape of gas-chambers Two or more expansion chambers in series connected by means of tubes

Sub-classes:
Recent Application in this class:
#1
20260125997
2026-05-07

Variable Muffler

 #2
20240200482
2024-06-20

VEHICLE EXHAUST SYSTEM WITH END CAP MIXER

 #3
20220154609
2022-05-19

Muffler

 #4
20210404367
2021-12-30

VEHICLE EXHAUST SYSTEM WITH END CAP MIXER

 #5
20210131343
2021-05-06

Two-passage exhaust system for an engine

 #6
20200408130
2020-12-31

Exhaust gas aftertreatment device

 #7
20200369402
2020-11-26

Double inlets exhaust system for unmanned aerial vehicle

 #8
20200318510
2020-10-08

Exhaust muffler

 #9
20200248599
2020-08-06

Muffler

 #10
20200240299
2020-07-30

Multi-chambered sound attenuation with resonant frequency targeting

 #11
20190337377
2019-11-07

Muffler assembly including a center muffler and two satellite mufflers

 #12
20190301323
2019-10-03

Vehicle muffler

 #13
20190226371
2019-07-25

Muffler

 #14
20190178124
2019-06-13

Acoustically tuned muffler

 #15
20190153925
2019-05-23

Pipe and metal sheet subassembly for an exhaust treatment device

 #16
20190145297
2019-05-16

MUFFLER

 #17
20190063282
2019-02-28

Air exhausting device

 #18
20190063281
2019-02-28

Air exhausting device

 #19
20190024549
2019-01-24

Method for forming a collar in a muffler housing

 #20
20180202335
2018-07-19

Exhaust device of engine

 #21
20170218830
2017-08-03

Muffler for an exhaust system

 #22
20170218806
2017-08-03

Muffler

 #23
20170183994
2017-06-29

Exhaust device structure for rocking vehicle

 #24
20170159520
2017-06-08

Muffler and method for manufacturing same

 #25
20170074132
2017-03-16

Exhaust system for internal combustion engine

 #26
20160281557
2016-09-29

Silencer for internal combustion engine

 #27
20160160717
2016-06-09

Silencer for an internal combustion engine of a motor vehicle

 #28
20160003116
2016-01-07

Engine-exhaust-system apparatus and package-type engine electric power generator

 #29
20150354433
2015-12-10

Method for installing inlet pipe and method for supporting inlet pipe

 #30
20150192055
2015-07-09

Muffler

 #31
20150165378
2015-06-18

Exhaust treatment system having an SCR with a center inlet

 #32
20150152773
2015-06-04

Exhaust system for motorcycle

 #33
20150004015
2015-01-01

Sound absorber for refrigerant compressor

 #34
20140144721
2014-05-29

Muffler for motor vehicle

 #35
20120273302
2012-11-01

Exhaust apparatus of internal combustion engine

 #36
20120210704
2012-08-23

Exhaust muffler for general-purpose engine

 #37
20120137666
2012-06-07

Exhaust gas apparatus of an internal combustion engine

 #38
20120000181
2012-01-05

Exhaust system having an aftertreatment module

 #39
20100126799
2010-05-27

Muffler and engine exhaust apparatus

 #40
20100050618
2010-03-04

Exhaust gas after treatment apparatus of a motor vehicle

 #41
20090308687
2009-12-17

Muffler for vehicle

 #42
20080116004
2008-05-22

Motorcycle Exhaust System and Motorcycle Provided with Exhaust System

 #43
20080110693
2008-05-15

Exhaust system for motorcycle

 #44
20080093161
2008-04-24

Rear muffler assembly

 #45
20070272480
2007-11-29

Exhaust apparatus of an internal combustion engine

 #46
20060037808
2006-02-23

Active exhaust muffler