F01N2490/16 - CPC Classification Index

ClassID:

138140 ⎘

F01N2490/16 - CPC Classification

Classification description:

Structure, disposition or shape of gas-chambers Chambers with particular shapes, e.g. spherical

Recent Application in this class:

20250360999

2025-11-27

EXHAUST HANDLING SYSTEMS FOR MARINE VESSELS AND RELATED METHODS

20250347243

2025-11-13

EXHAUST PURIFICATION APPARATUS

20250027439

2025-01-23

MUFFLER

20240286726

2024-08-29

EXHAUST HANDLING SYSTEMS FOR MARINE VESSELS AND RELATED METHODS

20240003275

2024-01-04

ACOUSTIC IMPEDANCE CHANGE STRUCTURE AND AIR PASSAGE TYPE SILENCER

20230113789

2023-04-13

Mixer

20220099006

2022-03-31

Sound attenuator as well as elements and a method of production thereof

20210131343

2021-05-06

Two-passage exhaust system for an engine

20170314435

2017-11-02

Muffler and/or exhaust apparatus and method of manufacture

#10

20170268403

2017-09-21

Cyclonic thermal diffuser and method

#11

20160347168

2016-12-01

Exhaust muffler for transverse installation in a vehicle

#12

20160053664

2016-02-25

Muffler and its corresponding manufacturing method

#13

20150337878

2015-11-26

Channeling fluidic waveguide surfaces and tubes

#14

20150204280

2015-07-23

Gas flow unit, a gas treatment device and a combustion engine provided therewith

#15

20150159528

2015-06-11

Noise attenuation unit for engine systems

#16

20150152773

2015-06-04

Exhaust system for motorcycle

#17

20140366736

2014-12-18

Device for treating a gas stream flowing radially outwardly from a central area

#18

20140332312

2014-11-13

Compact muffler for small two-stroke internal combustion engines

#19

20140311822

2014-10-23

Conformal transverse muffler

#20

20140311821

2014-10-23

Exhaust muffler

#21

20140158249

2014-06-12

Channeling gas flow tube

#22

20140072478

2014-03-13

Exhaust treatment device of diesel engine

#23

20130319789

2013-12-05

Two-stroke engine comprising a muffler

#24

20120273297

2012-11-01

Channeling gas flow tube

#25

20120228053

2012-09-13

Silencer for a two-stroke motor of a power tool

#26

20120227716

2012-09-13

TWO-STROKE MOTOR WITH IMPROVED SILENCER AND ADAPTED MOTOR MANAGEMENT

#27

20110209942

2011-09-01

Exhaust device of internal combustion engine

#28

20110041488

2011-02-24

EXHAUST SYSTEM OF INTERNAL COMBUSTION ENGINE

#29

20100193284

2010-08-05

Exhaust chamber for the exhaust line of an automobile

#30

20100006370

2010-01-14

Sound-attenuating muffler having reduced back pressure

#31

20090280045

2009-11-12

Air Purification System Employing Particle Burning

#32

20090255519

2009-10-15

Silencer for a motor device

#33

20090145687

2009-06-11

Motorcycle exhaust muffler

#34

20090127025

2009-05-21

Triangular cross section exhaust muffler

#35

20080282689

2008-11-20

EXHAUST GAS DIFFUSER

#36

20080035418

2008-02-14

Exhaust sound and emission control systems

#37

20070254250

2007-11-01

Air purification system employing particle burning

#38

20070045044

2007-03-01

Flow-through mufflers with optional thermo-electric, sound cancellation, and tuning capabilities

#39

20060191259

2006-08-31

Exhaust pipe of vehicle

#40

20060021507

2006-02-02

Particulate trap with selective blocking element

#41

20050279571

2005-12-22

Exhaust sound and emission control systems

#42

20050103003

2005-05-19

Exhaust gas muffler

#43

18369485

2024-07-23

Exhaust handling systems for marine vessels and related methods

#44

16927004

2020-10-27

Device for purifying the exhaust gases of a vehicle

#45

12660565

2015-06-23

Intake or exhaust gas particle removal apparatus