TREA

Helmholtz resonators

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  • CPC
  • F01N1/023
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Parent Industries

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F01Engines F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES F01N1/00Silencing apparatus characterised by method of silencing

Current Industry

F01N1/023Helmholtz resonators
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Muffler
    • Patent number 12,091,998
    • Issue date Sep 17, 2024
    • Purem GmbH
    • Martin Strähle
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Sound attenuating engine exhaust system
    • Patent number 12,071,874
    • Issue date Aug 27, 2024
    • K & N Engineering, Inc.
    • Steve E. Williams
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Muffler and method for making a muffler
    • Patent number 12,060,818
    • Issue date Aug 13, 2024
    • Purem GmbH
    • Michael Krause
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Sound mitigation for a duct
    • Patent number 11,965,442
    • Issue date Apr 23, 2024
    • Toyota Motor Engineering & Manufacturing North America, Inc.
    • Taehwa Lee
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Pneumatic tool exhaust muffler
    • Patent number 11,867,102
    • Issue date Jan 9, 2024
    • Snap-on Incorporated
    • Ottoleo Kuter-Arnebeck
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Resonator, method for producing such a resonator, and combustor arr...
    • Patent number 11,867,103
    • Issue date Jan 9, 2024
    • Siemens Energy Global GmbH & Co. KG
    • Claus Krusch
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    Combustor component, combustor including the combustor component, a...
    • Patent number 11,852,343
    • Issue date Dec 26, 2023
    • Mitsubishi Heavy Industries, Ltd.
    • Shinji Akamatsu
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • 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

    Noise attenuation components
    • Patent number 11,808,187
    • Issue date Nov 7, 2023
    • Caterpillar Inc.
    • Dustin Irvin Landwehr
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • 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

    Propulsion flow path duct systems and methods
    • Patent number 11,767,776
    • Issue date Sep 26, 2023
    • The Boeing Company
    • Michael Hayes
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Tunable sound attenuating modules
    • Patent number 11,713,904
    • Issue date Aug 1, 2023
    • Johnson Controls Tyco IP Holdings LLP
    • Curtis Eichelberger
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Acoustically tuned muffler
    • Patent number 11,702,969
    • Issue date Jul 18, 2023
    • Tenneco Automotive Operating Company Inc.
    • Keith Bartu
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Exhaust device
    • Patent number 11,698,008
    • Issue date Jul 11, 2023
    • Tenneco Automotive Operating Company Inc.
    • Abdulhadi Madi
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Sound suppressor
    • Patent number 11,674,417
    • Issue date Jun 13, 2023
    • Cameron M. Baxter
    • F41 - WEAPONS
  • Information Patent Grant

    Drone elimination muffler
    • Patent number 11,655,740
    • Issue date May 23, 2023
    • K & N Engineering, Inc.
    • Steve Williams
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Exhaust muffler for an exhaust system of an internal combustion engine
    • Patent number 11,643,953
    • Issue date May 9, 2023
    • Purem GmbH
    • Nicolas Mettenleiter
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Acoustic damper for gas turbine combustors with orthogonal slots
    • Patent number 11,536,174
    • Issue date Dec 27, 2022
    • President and Fellows of Harvard College
    • Katia Bertoldi
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Vacuum cleaner and electric motor module thereof
    • Patent number 11,486,282
    • Issue date Nov 1, 2022
    • MIDEA GROUP CO., LTD.
    • Lele Ming
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Pump
    • Patent number 11,486,373
    • Issue date Nov 1, 2022
    • Nitto Kohki Co., Ltd.
    • Kousei Houguchi
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Acoustic absorber for fan noise reduction
    • Patent number 11,459,921
    • Issue date Oct 4, 2022
    • Toyota Motor Engineering & Manufacturing North America, Inc.
    • Taehwa Lee
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Muffler with internally supported tuner
    • Patent number 11,421,568
    • Issue date Aug 23, 2022
    • Tenneco Automotive Operating Company Inc.
    • Abdulhadi Madi
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Exhaust system and muffler
    • Patent number 11,391,195
    • Issue date Jul 19, 2022
    • Tenneco Automotive Operating Company Inc.
    • Ankit Barot
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Acoustically tuned muffler
    • Patent number 11,365,658
    • Issue date Jun 21, 2022
    • Tenneco Automotive Operating Company Inc.
    • Gabriel Ostromecki
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Exhaust device with noise suppression system
    • Patent number 11,319,847
    • Issue date May 3, 2022
    • Tenneco Automotive Operating Company Inc.
    • Garrick R. Zuver
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Soundproofing device for transmission
    • Patent number 11,318,895
    • Issue date May 3, 2022
    • Toyota Jidosha Kabushiki Kaisha
    • Shotaro Kato
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Muffler
    • Patent number 11,261,768
    • Issue date Mar 1, 2022
    • Futaba Industrial Co., Ltd.
    • Hayato Tawada
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Muffler comprising a Helmholtz resonator and a vehicle comprising s...
    • Patent number 11,255,238
    • Issue date Feb 22, 2022
    • Volvo Car Corporation
    • Fredrik Rönnmark
    • 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

    Acoustic absorber with integrated heat sink
    • Patent number 11,204,204
    • Issue date Dec 21, 2021
    • Toyota Motor Engineering & Manufacturing North America, Inc.
    • Taehwa Lee
    • F28 - HEAT EXCHANGE IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    SOUND ATTENUATING ENGINE EXHAUST SYSTEM
    • Publication number 20240418111
    • Publication date Dec 19, 2024
    • K&N Engineering, Inc.
    • Steve E. Williams
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    EXHAUST GAS TREATMENT UNIT
    • Publication number 20240218819
    • Publication date Jul 4, 2024
    • TENNECO GMBH
    • Nils LENDLE
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    SOUND DAMPER
    • Publication number 20240102407
    • Publication date Mar 28, 2024
    • Purem GmbH
    • Michael Schmidt
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    PROPULSION FLOW PATH DUCT SYSTEMS AND METHODS
    • Publication number 20230407775
    • Publication date Dec 21, 2023
    • The Boeing Company
    • Michael Hayes
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    SOUND MITIGATION FOR A DUCT
    • Publication number 20230392527
    • Publication date Dec 7, 2023
    • Toyota Motor Engineering & Manufacturing North America, Inc.
    • Taehwa Lee
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    DRONE ELIMINATION MUFFLER
    • Publication number 20230304425
    • Publication date Sep 28, 2023
    • K&N Engineering, Inc.
    • Steve Williams
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • 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

    MUFFLER
    • Publication number 20230024144
    • Publication date Jan 26, 2023
    • Purem GmbH
    • Martin Strähle
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    MUFFLER AND METHOD FOR MAKING A MUFFLER
    • Publication number 20220403765
    • Publication date Dec 22, 2022
    • Purem GmbH
    • Michael Krause
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    Acoustically Tuned Muffler
    • Publication number 20220275738
    • Publication date Sep 1, 2022
    • Tenneco Automotive Operating Company Inc.
    • Keith BARTU
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    NOISE ATTENUATION COMPONENTS
    • Publication number 20220275737
    • Publication date Sep 1, 2022
    • Caterpillar Inc.
    • Dustin Irvin Landwehr
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    RESONATOR, METHOD FOR PRODUCING SUCH A RESONATOR, AND COMBUSTOR ARR...
    • Publication number 20220178284
    • Publication date Jun 9, 2022
    • Siemens Aktiengesellschaft
    • Claus Krusch
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    PROPULSION FLOW PATH DUCT SYSTEMS AND METHODS
    • Publication number 20220074329
    • Publication date Mar 10, 2022
    • The Boeing Company
    • Michael Hayes
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Application

    MUFFLER OF AN EXHAUST SYSTEM
    • Publication number 20220018272
    • Publication date Jan 20, 2022
    • Faurecia Emissions Control Technologies, Germany GmbH
    • Michael Thome
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • 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

    AIRFOIL-MOUNTED RESONATOR
    • Publication number 20210317753
    • Publication date Oct 14, 2021
    • Raytheon Technologies Corporation
    • Ramons A. Reba
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Application

    ACOUSTIC VOLUME AND INSULATION IN HOT-END OF EXHAUST SYSTEMS
    • Publication number 20210262374
    • Publication date Aug 26, 2021
    • Faurecia Emissions Control Technologies, USA, LLC
    • Thorsten Keesser
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    SOUND ATTENUATING ENGINE EXHAUST SYSTEM
    • Publication number 20210231035
    • Publication date Jul 29, 2021
    • K&N Engineering, Inc.
    • Steve E. Williams
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    Muffler With Internally Supported Tuner
    • Publication number 20210207507
    • Publication date Jul 8, 2021
    • Tenneco Automotive Operating Company Inc.
    • Abdulhadi MADI
    • 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

    Sound Suppressor
    • Publication number 20210123364
    • Publication date Apr 29, 2021
    • Cameron M. Baxter
    • F41 - WEAPONS
  • Information Patent Application

    EXHAUST SYSTEM FOR INTERNAL COMBUSTION ENGINE
    • Publication number 20210108544
    • Publication date Apr 15, 2021
    • Faurecia Emission Control Technologies (Shanghai) Co., Ltd.
    • Dennis BOENNEN
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    TUNABLE SOUND ATTENUATING MODULES
    • Publication number 20210095888
    • Publication date Apr 1, 2021
    • Johnson Controls Technology Company
    • Curtis EICHELBERGER
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    PNEUMATIC TOOL EXHAUST MUFFLER
    • Publication number 20210062695
    • Publication date Mar 4, 2021
    • Snap-on Incorporated
    • Ottoleo Kuter-Arnebeck
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    EXHAUST SYSTEM AND MUFFLER
    • Publication number 20200400060
    • Publication date Dec 24, 2020
    • Tenneco Automotive Operating Company Inc.
    • Ankit Barot
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    ACOUSTIC ABSORBER FOR FAN NOISE REDUCTION
    • Publication number 20200284174
    • Publication date Sep 10, 2020
    • Toyota Motor Engineering & Manufacturing North America, Inc.
    • Taehwa Lee
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Application

    ACOUSTIC ABSORBER WITH INTEGRATED HEAT SINK
    • Publication number 20200284529
    • Publication date Sep 10, 2020
    • Toyota Motor Engineering & Manufacturing North America, Inc.
    • Taehwa Lee
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Application

    ACTIVE HELMHOLTZ RESONATOR WITH ACTUATED MEMBRANE
    • Publication number 20200265822
    • Publication date Aug 20, 2020
    • Faurecia Emissions Control Technologies, USA, LLC
    • James Egan
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    ACOUSTIC DAMPER FOR GAS TURBINE COMBUSTORS WITH ORTHOGONAL SLOTS
    • Publication number 20200232357
    • Publication date Jul 23, 2020
    • President and Fellows of Harvard College
    • Katia Bertoldi
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    SOUNDPROOFING DEVICE FOR TRANSMISSION
    • Publication number 20200215997
    • Publication date Jul 9, 2020
    • Toyota Jidosha Kabushiki Kaisha
    • Shotaro KATO
    • B60 - VEHICLES IN GENERAL