F01N 1/12

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Description

Class  F01N : GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES


Subclass 1/12: Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using spirally- or helically-shaped channels (F01N 1/1 takes precedence; cyclones B04C)

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
10273862 Engine exhaust extractor with internal airfoils and method of manufacturingFeb 15, 17Apr 30, 19EXHAUST THRUSTER, LLC
10273844 MufflerMar 13, 17Apr 30, 19Not available
10001048 Cyclonic thermal diffuser and methodMar 21, 16Jun 19, 18PACCAR Inc.
9534525 Mixer assembly for exhaust aftertreatment systemMay 27, 15Jan 03, 17TENNECO AUTOMOTIVE OPERATING COMPANY INC.
9500108 Split path silencerJan 09, 15Nov 22, 16FLEXIBLE METAL INC.
9399936 Exhaust apparatusMar 20, 15Jul 26, 16KAWASAKI JUKOGYO KABUSHIKI KAISHA
9249703 Compact muffler for small two-stroke internal combustion enginesNov 11, 13Feb 02, 16NORTHWEST ULD, INC. DBA NORTHWEST UAV PROPULSION SYSTEMS
9175644 Engine with exhaust gas recirculation system and variable geometry turbochargerApr 24, 13Nov 03, 15GM GLOBAL TECHNOLOGY OPERATIONS LLC
9121319 Low pressure drop, high efficiency spark or particulate arresting devices and methods of useOct 16, 12Sep 01, 15UNIVERSAL ACOUSTIC & EMISSION TECHNOLOGIES
8833513 Exhaust muffler provided with tail pipeSep 07, 11Sep 16, 14Matsushou Co., Ltd.
8813908 HVAC blower with noise suppression featuresMar 08, 13Aug 26, 14FORD GLOBAL TECHNOLOGIES, LLC
8733497 Fluid flow controllerFeb 26, 13May 27, 14PAX SCIENTIFIC, INC.
8689933 Helmholtz resonator for a gas turbine combustion chamberSep 14, 10Apr 08, 14SIEMENS AKTIENGESELLSCHAFT
8381870 Fluid flow controllerJul 18, 11Feb 26, 13IMPULSE DEVICES INC., PAX STREAMLINE, INC.,
8307945 Gas-turbine exhaust coneJul 11, 11Nov 13, 12ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
8196702 Muffler for vehicleNov 30, 10Jun 12, 12HYUNDAI MOTOR COMPANY
8104572 Spin mufflerJan 22, 10Jan 31, 12Not available
7721845 Exhaust mufflerFeb 20, 08May 25, 10DOLMAR GMBH
7661509 Devices for regulating pressure and flow pulsesJul 14, 04Feb 16, 10Not available
7380639 Backpressure reducing exhaust system with stationary blade structureOct 12, 04Jun 03, 08Arlasky Performance Inc.

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2019/0345,856 METHODS OF AND SYSTEMS FOR CONSTRAINING FIBROUS MATERIAL DURING FILLING OPERATIONSep 22, 17Nov 14, 19Not available
2018/0328,266 APPARATUS FOR INCREASING FLOW RATE IN ENGINE PIPE AND PROCESSING METHOD THEREFORFeb 26, 16Nov 15, 18Not available

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Top Owners in This Subclass

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Patents Issued To Date - By Filing Year

Average Time to Issuance