Two or more expansion chambers in series separated by apertured walls only

Patents Grantslast 30 patents

  • Information Patent Grant

    Exhaust system noise reduction device of vehicle

    • Patent number 11,846,216
    • Issue date Dec 19, 2023
    • Hyundai Motor Company
    • Hyeon Gyun Ahn
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Exhaust system tuner tube to reduce standing wave

    • Patent number 11,802,499
    • Issue date Oct 31, 2023
    • Tenneco Automotive Operating Company Inc.
    • Boyd Boehlke
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Exhaust muffler

    • Patent number 11,795,847
    • Issue date Oct 24, 2023
    • Purem GmbH
    • Nicolas Mettenleiter
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Muffler, compressor assembly, and refrigerator

    • Patent number 11,732,623
    • Issue date Aug 22, 2023
    • Gree Green Refrigeration Technology Center Co., Ltd. of Zhuhai
    • Panpan Heng
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Muffler for vehicle

    • Patent number 11,661,871
    • Issue date May 30, 2023
    • Hyundai Motor Company
    • Young Dug Yang
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Exhaust device

    • Patent number 11,499,464
    • Issue date Nov 15, 2022
    • Suzuki Motor Corporation
    • Kohei Yamashita
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Method for forming a collar in a muffler housing

    • Patent number 11,415,031
    • Issue date Aug 16, 2022
    • Bosal Emission Control Systems N.V.
    • Paul Vanleene
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Muffler

    • Patent number 11,377,989
    • Issue date Jul 5, 2022
    • Purem GmbH
    • Micha Hörr
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Exhaust unit

    • Patent number 11,346,262
    • Issue date May 31, 2022
    • Futaba Industrial Co., Ltd.
    • Hirohisa Okami
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Exhaust device for internal combustion engine

    • Patent number 11,248,504
    • Issue date Feb 15, 2022
    • Honda Motor Co., Ltd.
    • Keisuke Kishikawa
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Silencer insert, silencer comprising the same and method for manufa...

    • Patent number 11,248,513
    • Issue date Feb 15, 2022
    • Purem GmbH
    • Hristo Zdravkov
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Exhaust device for internal combustion engine

    • Patent number 11,236,652
    • Issue date Feb 1, 2022
    • Honda Motor Co., Ltd.
    • Keisuke Kishikawa
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Exhaust silencer device

    • Patent number 11,220,949
    • Issue date Jan 11, 2022
    • Toyota Jidosha Kabushiki Kaisha
    • Taiki Teramoto
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Systems and methods for controlling flow distribution in an aftertr...

    • Patent number 11,208,927
    • Issue date Dec 28, 2021
    • Cummins Emission Solutions Inc.
    • Apoorv Kalyankar
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Exhaust device for internal combustion engine

    • Patent number 10,787,943
    • Issue date Sep 29, 2020
    • Honda Motor Co., Ltd.
    • Keisuke Kishikawa
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Pipe and metal sheet subassembly for an exhaust treatment device

    • Patent number 10,787,951
    • Issue date Sep 29, 2020
    • Tenneco Automotive Operating Company Inc.
    • James Dougherty
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Exhaust component having a main casing and a partial casing, and me...

    • Patent number 10,753,243
    • Issue date Aug 25, 2020
    • Faurecia Systemes D'Echappement
    • Vincent Vurpillot
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Sound absorber for refrigerant compressor

    • Patent number 10,648,472
    • Issue date May 12, 2020
    • Bitzer Kuehlmaschinenbau GmbH
    • Dominic Kienzle
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Exhaust gas mixer

    • Patent number 10,605,143
    • Issue date Mar 31, 2020
    • Ford Global Technologies, LLC
    • Xiaogang Zhang
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Inline scrubber with dual water system

    • Patent number 10,378,401
    • Issue date Aug 13, 2019
    • WÄRTSILÄ MOSS AS
    • Jan Gunnar Gannefors
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Exhaust gas burner assembly

    • Patent number 10,344,646
    • Issue date Jul 9, 2019
    • Tenneco Automotive Operating Company Inc.
    • John Stanavich
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Exhaust-gas module for an internal combustion engine

    • Patent number 10,316,726
    • Issue date Jun 11, 2019
    • Tenneco GmbH
    • Michael Jerges
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Muffler and method for manufacturing same

    • Patent number 10,174,654
    • Issue date Jan 8, 2019
    • Eberspächer Exhaust Technology GmbH & Co. KG
    • Jürgen Häberle
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Device for the aftertreatment of exhaust gas from a motor vehicle

    • Patent number 9,982,584
    • Issue date May 29, 2018
    • MAN Truck & Bus AG
    • Maximilian Püschel
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Exhaust gas muffler

    • Patent number 9,938,870
    • Issue date Apr 10, 2018
    • Tenneco GmbH
    • Frank Reichelt
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Catalytic converter device with injection section

    • Patent number 9,938,878
    • Issue date Apr 10, 2018
    • Eberspächer Exhaust Technology GmbH & Co. KG
    • Herve Ferront
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Method of and apparatus for exhausting internal combustion engines

    • Patent number 9,850,799
    • Issue date Dec 26, 2017
    • NG1 Technologies, Inc.
    • Dustin Nord
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Exhaust gas duct system for an internal combustion engine

    • Patent number 9,822,684
    • Issue date Nov 21, 2017
    • Eberspächer Exhaust Technology GmbH & Co. KG
    • Remus Boriga
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Diffuser plate for an exhaust aftertreatment module

    • Patent number 9,802,157
    • Issue date Oct 31, 2017
    • Caterpillar Inc.
    • Mark Lunau Schmid
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Vortex flow apparatus

    • Patent number 9,803,667
    • Issue date Oct 31, 2017
    • VTX TECHNOLOGY LLC
    • John L. Brock
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    Muffler

    • Publication number 20230399963
    • Publication date Dec 14, 2023
    • Purem GmbH
    • Martin Wagmann
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    META-MUFFLER FOR REDUCING BROADBAND NOISE

    • Publication number 20230184147
    • Publication date Jun 15, 2023
    • Center for Advanced Meta-Materials
    • Byung Hun AN
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    EXHAUST SYSTEM TUNER TUBE TO REDUCE STANDING WAVE

    • Publication number 20230160325
    • Publication date May 25, 2023
    • Tenneco Automotive Operating Company Inc.
    • Boyd Boehlke
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    EXHAUST SYSTEM NOISE REDUCTION DEVICE OF VEHICLE

    • Publication number 20210355850
    • Publication date Nov 18, 2021
    • Hyundai Motor Company
    • Hyeon Gyun Ahn
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    EXHAUST MUFFLER

    • Publication number 20210156287
    • Publication date May 27, 2021
    • Eberspächer Exhaust Technology GmbH
    • Nicolas METTENLEITER
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    MUFFLER FOR VEHICLE

    • Publication number 20210140354
    • Publication date May 13, 2021
    • Hyundai Motor Company
    • Young Dug Yang
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    SYSTEMS AND METHODS FOR CONTROLLING FLOW DISTRIBUTION IN AN AFTERTR...

    • Publication number 20210131329
    • Publication date May 6, 2021
    • Cummins Emission Solutions Inc.
    • Apoorv KALYANKAR
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    HELMHOLTZ MUFFLER FOR VEHICLE

    • Publication number 20200018203
    • Publication date Jan 16, 2020
    • Hyundai Motor Company
    • Hyun Woo YOON
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    EXHAUST DEVICE OF ENGINE

    • Publication number 20190195099
    • Publication date Jun 27, 2019
    • SUZUKI MOTOR CORPORATION
    • Takahito TOMOBE
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    EXHAUST COMPONENT HAVING A MAIN CASING AND A PARTIAL CASING, AND ME...

    • Publication number 20180156088
    • Publication date Jun 7, 2018
    • Faurecia Systemes D'echappement
    • Vincent Vurpillot
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    INLINE SCRUBBER WITH DUAL WATER SYSTEM

    • Publication number 20180149054
    • Publication date May 31, 2018
    • WÄRTSILÄ MOSS AS
    • Jan Gunnar GANNEFORS
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    EXHAUST SILENCING DEVICE

    • Publication number 20140291067
    • Publication date Oct 2, 2014
    • YUTAKA GIKEN CO., LTD.
    • Teruaki Mukai
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    MUFFLER EQUIPPED WITH CATALYTIC CONVERTER

    • Publication number 20140251717
    • Publication date Sep 11, 2014
    • Honda Motor Co., Ltd.
    • Sayaka Yasoshina
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    MUFFLER EQUIPPED WITH CATALYTIC CONVERTER

    • Publication number 20140251718
    • Publication date Sep 11, 2014
    • Honda Motor Co., Ltd.
    • Sayaka Yasoshina
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    VARIABLE VALVE APPARATUS AND MUFFLER PROVIDED WITH THE SAME

    • Publication number 20140166392
    • Publication date Jun 19, 2014
    • Hyundai Motor Company
    • Jae Hong Kye
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    MUFFLER ASSEMBLY WITH SIPHON TUBE

    • Publication number 20140054101
    • Publication date Feb 27, 2014
    • GM GLOBAL TECHNOLOGY OPERATIONS LLC
    • Christina Zhang
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    LIGHTWEIGHT CONSTRUCTION SILENCER

    • Publication number 20130333977
    • Publication date Dec 19, 2013
    • Georg WIRTH
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    SHUNT PULSATION TRAP FOR POSITIVE DISPLACEMENT (PD) INTERNAL COMBUS...

    • Publication number 20130247849
    • Publication date Sep 26, 2013
    • Paul Xiubao Huang
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    MUFFLER WITH DUAL EXHAUST GAS DISCHARGE PIPE FOR VEHICLE

    • Publication number 20130220732
    • Publication date Aug 29, 2013
    • Hyundai Motor Company
    • Ki Chul PARK
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Exhaust Gas Treatment Device

    • Publication number 20130180233
    • Publication date Jul 18, 2013
    • J. Eberspaecher GmbH & Co. KG
    • Michael Marquardt-Stammberger
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    METHOD OF AND APPARATUS FOR EXHAUSTING INTERNAL COMBUSTION ENGINES

    • Publication number 20130167506
    • Publication date Jul 4, 2013
    • NG1 TECHNOLOGIES, LLC
    • Dustin NORD
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    EXHAUST-GAS MUFFLER

    • Publication number 20120210701
    • Publication date Aug 23, 2012
    • Honda Motor Co., Ltd.
    • Masanori Usa
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    EXHAUST APPARATUS FOR AN INTERNAL COMBUSTION ENGINE

    • Publication number 20120138384
    • Publication date Jun 7, 2012
    • Toyota Jidosha Kabushiki Kaisha
    • Kazutoshi Wakatsuki
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    EXHAUST DEVICE

    • Publication number 20120012419
    • Publication date Jan 19, 2012
    • MPG TECH, LLC
    • Linwood von Linsowe
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    DIFFUSER MUFFLER

    • Publication number 20110297479
    • Publication date Dec 8, 2011
    • Boyd L. Butler
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Exhaust Gas Treatment Device

    • Publication number 20110203692
    • Publication date Aug 25, 2011
    • J. Eberspaecher GmbH & Co. KG
    • Marcus Werni
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    EXHAUST MUFFLER DEVICE

    • Publication number 20110192677
    • Publication date Aug 11, 2011
    • Chih-Chien CHIEN
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    MUFFLER AND ENGINE EXHAUST APPARATUS

    • Publication number 20100126799
    • Publication date May 27, 2010
    • Toyota Jidosha Kabushiki Kaisha
    • Koji Matsueda
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Exhaust Gas Muffler

    • Publication number 20100011754
    • Publication date Jan 21, 2010
    • Fritz Kiesewetter
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    SOUND-ATTENUATING MUFFLER HAVING REDUCED BACK PRESSURE

    • Publication number 20100006370
    • Publication date Jan 14, 2010
    • Zvi SHAYA
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES