Patents-Review.com
ClassID:

137964 ⎘

F01N2230/00 - CPC Classification

Classification description:

Combination of silencers and other devices

Sub-classes:
Recent Application in this class:
#1
20250389215
2025-12-25

CONVERTIBLE SILENCER

 #2
20250043706
2025-02-06

CONVERTIBLE SILENCER

 #3
20230184146
2023-06-15

A MUFFLER HEAT-EXCHANGER FOR AN ENGINE EXHAUST, AND ENGINE EXHAUST SYSTEM, AND AN ENGINE SYSTEM

 #4
20200182123
2020-06-11

Exhaust system for a vehicle

 #5
20190154176
2019-05-23

Structure for installing pipe fixing clamp installed in internal structural pipe of sound absorber

 #6
20180073412
2018-03-15

Combined heat exchanger and exhaust silencer

 #7
20170268402
2017-09-21

Exhaust-gas after-treatment device

 #8
20170218805
2017-08-03

Emission signature modification device

 #9
20170157602
2017-06-08

Method of making a particulate filter carry a catalyst

 #10
20170022861
2017-01-26

Exhaust silencer

 #11
20160169075
2016-06-16

Combination exhaust gas heat exchanger/noise reduction member

 #12
20130074479
2013-03-28

UREA HEATING SYSTEM AND HEATING METHOD THEREOF

 #13
20120210704
2012-08-23

Exhaust muffler for general-purpose engine

 #14
20090007552
2009-01-08

Exhaust manifold having improved NVH characteristics

 #15
20070272480
2007-11-29

Exhaust apparatus of an internal combustion engine

 #16
20070045044
2007-03-01

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

 #17
20060150810
2006-07-13

Gas cleaning devices

 #18
20060144236
2006-07-06

Electrostatic filtering and particle conversion in gaseous environments

 #19
20050284691
2005-12-29

Integrated heat exchanger and muffler unit

 #20
20050199408
2005-09-15

Arcing electron stream apparatus and method