ClassID:

138215

F01N2590/06 - CPC Classification

Classification description:

Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for hand-held tools or portables devices

Recent Application in this class:
#1
20250314190
2025-10-09

HANDHELD WORK APPARATUS, AND EXHAUST GAS AFTER-TREATMENT UNIT FOR A HANDHELD WORK APPARATUS, AND EXHAUST MUFFLER

#2
20250012208
2025-01-09

MUFFLER AND OUTLET STUB FOR A MUFFLER

#3
20230313719
2023-10-05

SMALL AIR-COOLED ENGINE WITH CATALYTIC CONVERTER WITH RUTHENIUM CATALYST

#4
20210310398
2021-10-07

Vibrating plate with hood optimized for noise reduction

#5
20210199034
2021-07-01

Muffler device

#6
20210148272
2021-05-20

Catalyst unit and exhaust structure of engine including same

#7
20210062695
2021-03-04

Pneumatic tool exhaust muffler

#8
20210047951
2021-02-18

Engine muffler apparatus

#9
20190323424
2019-10-24

FLEXIBLE FUEL GENERATOR AND METHODS OF USE THEREOF

#10
20180334938
2018-11-22

Extraction apparatus

#11
20180016964
2018-01-18

Engine and engine-driven working machine

#12
20180016956
2018-01-18

Engine and engine-driven working machine

#13
20170306817
2017-10-26

MUFFLER FOR ENGINE

#14
20170303473
2017-10-26

Hedge trimmer

#15
20170271942
2017-09-21

Engine-driven working machine

#16
20160258387
2016-09-08

Flex fuel field generator

#17
20160186675
2016-06-30

System and method for operating a diesel engine

#18
20160010918
2016-01-14

Engine exhaust-driven heating device for use in portable surface drying equipment

#19
20150369103
2015-12-24

Engine unit and work vehicle

#20
20150034025
2015-02-05

Flexible fuel generator and methods of use thereof

#21
20150000256
2015-01-01

Engine unit and work vehicle

#22
20140305107
2014-10-16

Air-cooled engine for working machine

#23
20140256245
2014-09-11

Box-type generator driven by engine

#24
20140216370
2014-08-07

Engine and engine-operated working machine

#25
20140000574
2014-01-02

Muffler and engine-driven work machine

#26
20130319789
2013-12-05

Two-stroke engine comprising a muffler

#27
20130247896
2013-09-26

Power cutter

#28
20130168969
2013-07-04

Flex fuel field generator

#29
20120279199
2012-11-08

Muffler attachment system

#30
20120228053
2012-09-13

Silencer for a two-stroke motor of a power tool

#31
20120227716
2012-09-13

TWO-STROKE MOTOR WITH IMPROVED SILENCER AND ADAPTED MOTOR MANAGEMENT

#32
20120210704
2012-08-23

Exhaust muffler for general-purpose engine

#33
20120210703
2012-08-23

Purifying system for combustive air

#34
20120177822
2012-07-12

Coating substrates for catalysts in bundles

#35
20120117809
2012-05-17

CHAINSAW ARRANGEMENT

#36
20120103720
2012-05-03

Engine

#37
20120024275
2012-02-02

Two-stroke internal combustion engine

#38
20110308485
2011-12-22

Four-stroke engine and working machine using the same

#39
20110296819
2011-12-08

Multiple-shell silencer / rear shell port

#40
20110017336
2011-01-27

Muffler attachment system

#41
20100230205
2010-09-16

Muffler

#42
20100215557
2010-08-26

Aging-resistant catalyst article for internal combustion engines

#43
20100163337
2010-07-01

Muffler

#44
20100122674
2010-05-20

Cooling air passage for a motor chain saw

#45
20100083512
2010-04-08

CHAIN SAW

#46
20100018191
2010-01-28

Catalytic smog reduction

#47
20100011754
2010-01-21

Exhaust gas muffler

#48
20100011752
2010-01-21

Exhaust muffler comprising a catalytic converter

#49
20090294210
2009-12-03

Exhaust-gas muffler

#50
20090293462
2009-12-03

Catalytic muffler having crossover passageway for secondary air

#51
20090255519
2009-10-15

Silencer for a motor device

#52
20090208297
2009-08-20

Soil compactor having low profile muffler

#53
20090136387
2009-05-28

Diesel particulate filter system for auxiliary power units

#54
20090084626
2009-04-02

Muffler and working machine

#55
20090038106
2009-02-12

Engine blower

#56
20090013673
2009-01-15

MUFFLER FOR SMALL ENGINE

#57
20090007438
2009-01-08

Chain saw

#58
20080164092
2008-07-10

Silencer with fin outlet

#59
20080163617
2008-07-10

POWER IMPLEMENT

#60
20080135331
2008-06-12

Exhaust muffler

#61
20080127641
2008-06-05

EXHAUST SYSTEM

#62
20080127639
2008-06-05

Multiple-shell silencer / rear shell port

#63
20080110160
2008-05-15

Catalyst chamber

#64
20080053076
2008-03-06

EXHAUST DEVICE WITH A FLAME RESONATOR

#65
20080035098
2008-02-14

Portable handheld work apparatus

#66
20070199554
2007-08-30

Portable working machine

#67
20070187174
2007-08-16

COLLAPSIBLE MUFFLER SYSTEM

#68
20070113540
2007-05-24

Catalyst body and an exhaust system for a small-size engine and a method for producing the catalyst body

#69
20060112683
2006-06-01

Exhaust system in an implement driven by internal combustion engine

#70
20060102420
2006-05-18

Muffler for exhaust gas

#71
20060039836
2006-02-23

Meander-type catalytic converter

#72
20060026953
2006-02-09

Catalyst-attached muffler for internal combustion engine

#73
20050284140
2005-12-29

Reflection catalytic converter

#74
20050263344
2005-12-01

Exhaust gas muffler

#75
20050252715
2005-11-17

Muffler for compact combustion engines

#76
20050224284
2005-10-13

Engine exhaust muffler with exhaust emission control function

#77
20050217931
2005-10-06

Method and apparatus for venting exhaust gas from an engine

#78
20050191148
2005-09-01

Attachment pin for an exhaust-gas muffler

#79
20050155818
2005-07-21

Exhaust muffler

#80
20050150719
2005-07-14

Exhaust silencer

#81
20050150716
2005-07-14

Exhaust apparatus for small-sized engine

#82
20050139418
2005-06-30

Exhaust-gas muffler

#83
20050029039
2005-02-10

Exhaust gas muffler

#84
20050028516
2005-02-10

Exhaust gas muffler