| Patents for F01N 1 - Silencing apparatus characterised by method of silencing (8,998) |
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| 04/07/1998 | US5736690 Muffler with catalytic converter |
| 04/01/1998 | EP0832347A1 Muffler |
| 03/31/1998 | US5733157 Four-cycle outboard motor |
| 03/31/1998 | US5732555 For treating exhaust gases from an internal combustion engine |
| 03/26/1998 | DE19645941C1 Gas-conduit component |
| 03/26/1998 | DE19639079A1 Silencer for motor vehicle internal combustion engine |
| 03/24/1998 | US5731556 Muffler for pneumatic device |
| 03/19/1998 | DE19637566A1 Double reflector power part for two-stroke Otto engine |
| 03/18/1998 | EP0828926A1 A silencer with incorporated catalyst |
| 03/18/1998 | EP0828466A1 Active noise cancelling muffler |
| 03/18/1998 | EP0634919B1 Active noise-cancellation system for automotive mufflers |
| 03/18/1998 | CN2276563Y Intake muffler |
| 03/11/1998 | EP0828064A2 Circular plate spring |
| 03/10/1998 | US5727071 Noise silencing device |
| 03/10/1998 | US5726398 Automotive bumper and muffler combination |
| 03/10/1998 | US5726397 Vehicle exhaust device |
| 03/05/1998 | DE19635804A1 Exhaust silencer for internal combustion engine |
| 03/04/1998 | CN1174928A Silencer for two-wheel motorcycle |
| 03/03/1998 | US5723829 Muffler assembly of internal combustion engine |
| 03/03/1998 | US5723827 Noise suppressing muffler |
| 02/26/1998 | DE19654618C1 Noise insulator for gas pipe system |
| 02/18/1998 | CN2274692Y Silencer |
| 02/18/1998 | CN1173914A Integral threaded turbine outlet |
| 02/17/1998 | US5718045 Silencer and process for producing the same |
| 02/11/1998 | EP0823016A1 A combined heat exchanger and silencer apparatus |
| 02/11/1998 | CN2274257Y Silencer |
| 02/11/1998 | CN1172896A Exhaust muffler |
| 02/10/1998 | US5717173 Exhaust mufflers with stamp formed internal components and method of manufacture |
| 02/10/1998 | US5717172 For a jet engine |
| 02/04/1998 | EP0822322A1 Muffler for an internal combustion engine |
| 02/04/1998 | CN2273774Y Spiral-flow type exaust silencing arraugement |
| 02/03/1998 | US5714724 Muffler mounted in a pipe |
| 01/29/1998 | DE19728243A1 Silencer for motorcycle exhaust |
| 01/29/1998 | DE19726059A1 Motor silencer |
| 01/27/1998 | US5712455 Dual entry plug muffler |
| 01/27/1998 | US5712454 Exhaust system in internal combustion engine |
| 01/22/1998 | DE19729666A1 Exhaust silencer for IC-engine |
| 01/22/1998 | DE19629368A1 Resonance damper for motor vehicle exhaust pipe |
| 01/21/1998 | CN2272947Y Spiral silencer |
| 01/21/1998 | CN1170811A Silencer structure |
| 01/20/1998 | US5709241 Butterfly valve |
| 01/14/1998 | EP0674747B1 Silencer |
| 01/13/1998 | US5708238 Exhaust silencing device |
| 01/13/1998 | US5708237 Automobile exhaust noise silencer |
| 01/07/1998 | EP0817166A1 Noise control device |
| 01/07/1998 | EP0817165A1 Noise control device |
| 01/07/1998 | EP0816649A1 Absorption and reflection type silencer |
| 01/07/1998 | EP0816648A1 Silencer for motor vehicle |
| 01/07/1998 | CN2272054Y Silencing apparatus for internal combustion engine |
| 01/06/1998 | US5705777 Refrigeration compressor muffler |
| 01/06/1998 | CA2122108C Multiple adaptive filter active noise canceller |
| 12/30/1997 | US5703338 Sound absorber |
| 12/30/1997 | US5703337 In gas exhaust streams |
| 12/30/1997 | US5703336 Exhaust noise suppressing apparatus for hermetic compressor |
| 12/30/1997 | US5702276 Watercraft catalytic exhaust system |
| 12/23/1997 | US5701349 Active vibration controller |
| 12/23/1997 | US5699749 Exhaust system, hull, and speed indicator for watercraft |
| 12/17/1997 | EP0812381A1 Spark arresting structure |
| 12/17/1997 | CN2270838Y Noise silencer of axial flow fan for tunnel |
| 12/03/1997 | EP0810354A1 Flexible pipe unit for use in exhaust pipe line of automotive engine |
| 12/03/1997 | EP0809757A1 Integral threaded turbine outlet |
| 12/03/1997 | EP0542749B1 Noise cancellation apparatus |
| 12/02/1997 | US5693918 For canceling noise propagating through an exhaust pipe |
| 12/02/1997 | US5692374 Exhaust system of internal combustion engine |
| 11/26/1997 | EP0808694A1 Silencer mechanism for use in an impact wrench |
| 11/25/1997 | US5692052 Engine noise control apparatus |
| 11/20/1997 | WO1997043528A1 Silencer |
| 11/20/1997 | DE19720410A1 Vehicle exhaust silencer |
| 11/19/1997 | EP0807749A2 Exhaust apparatus for a motor vehicle as well as a motor vehicle |
| 11/05/1997 | EP0805431A2 Method and device for active noise control of gas flows |
| 11/05/1997 | EP0725965B1 An active noise cancellation muffler for a motor vehicle |
| 10/30/1997 | WO1997040264A1 Exhaust assembly for use with combustion engines, and vehicle provided with such assembly |
| 10/29/1997 | CN1163652A Resonance exhaust silencer |
| 10/22/1997 | EP0802309A1 Device for the purification of combustion engine exhaust gas |
| 10/22/1997 | EP0802308A1 Silencer |
| 10/21/1997 | US5678404 Internal combustion engine variable tuned exhaust system |
| 10/14/1997 | US5677958 For compensating interference noise |
| 10/14/1997 | US5677518 Device for deadening sound in pipelines |
| 10/14/1997 | US5676575 Exhaust system for watercraft |
| 10/14/1997 | US5676300 Sound reduction apparatus for pneumatic type nailing machine |
| 10/09/1997 | WO1997037109A1 Device for muffling noise from a gas stream primarily in an internal combustion engine |
| 10/09/1997 | DE19654763A1 Silencer for chainsaw Two=stroke IC-engine |
| 10/08/1997 | CN2264251Y 消音器 Silencer |
| 10/07/1997 | US5674099 Outboard drive exhaust system |
| 10/01/1997 | EP0797702A1 High efficiency vessels for bleaching lignocellulosic, cellulosic and synthetic polymeric fibrous materials |
| 09/25/1997 | WO1997035100A1 Exhaust silencer arrangement |
| 09/25/1997 | DE19611516A1 Mineral wool filler and silencer moulding for car exhausts |
| 09/25/1997 | DE19611133A1 Schalldämpfer-Anordnung Muffler assembly |
| 09/24/1997 | EP0796389A1 Water-cooled catalyst system |
| 09/24/1997 | EP0649494B1 Inlet or exhaust line for reciprocating machine |
| 09/24/1997 | CN1160122A Automotive silencer |
| 09/23/1997 | US5670757 Exhaust silencer for engines and generators |
| 09/23/1997 | US5670756 Silencer |
| 09/16/1997 | CA2121908C Actively sound reduced muffler having a venturi effect configuration |
| 09/10/1997 | EP0794324A2 Combined multiple chamber reflection-absorption exhaust silencer |
| 09/10/1997 | EP0643799B1 Muffler with catalytic converter arrangement |
| 09/09/1997 | US5666427 Method of and apparatus for controlling noise generated in confined spaces |
| 09/04/1997 | WO1997032117A1 Emission control and/or silencer and/or separator and/or mixing apparatus |
| 09/02/1997 | US5663537 Assembly of an exhaust pipe unit and a muffling device |
| 09/02/1997 | US5661973 Muffler and fuel saving device for internal combustion diesel engine |