having means to impart whirling motion to the gases

Patents Grantslast 30 patents

  • Information Patent Grant

    Air-transparent selective sound silencer using ultra-open metamaterial

    • Patent number 11,846,217
    • Issue date Dec 19, 2023
    • Trustees of Boston University
    • Xin Zhang
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Silencer

    • Patent number 11,763,789
    • Issue date Sep 19, 2023
    • NINGBO GNS AUTO PARTS CO., LTD.
    • Qiang Gao
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Vorticity based noise abatement

    • Patent number 11,187,136
    • Issue date Nov 30, 2021
    • The United States of America as represented by the Secretary of the Army
    • Michael V. Scanlon
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Air-transparent selective sound silencer using ultra-open metamaterial

    • Patent number 10,947,876
    • Issue date Mar 16, 2021
    • Trustees of Boston University
    • Xin Zhang
    • 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
  • Information Patent Grant

    Emissions cleaning module

    • Patent number 9,702,288
    • Issue date Jul 11, 2017
    • Perkins Engines Company Limited
    • Naseer A. Niaz
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Reductant mixing system for an exhaust gas after-treatment device

    • Patent number 9,689,290
    • Issue date Jun 27, 2017
    • GM Global Technology Operations LLC
    • Jianwen Li
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Tailor to fit muffler

    • Patent number 9,689,301
    • Issue date Jun 27, 2017
    • Tenneco Automotive Operating Company Inc.
    • Richard T. Carr
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Exhaust mixer, emissions cleaning module and method

    • Patent number 9,638,079
    • Issue date May 2, 2017
    • Perkins Engines Company Limited
    • Andrew Keen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Emissions cleaning module for an engine

    • Patent number 9,617,887
    • Issue date Apr 11, 2017
    • Perkins Engines Company Limited
    • Naseer A. Niaz
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Compact modular low resistance broadband acoustic silencer

    • Patent number 9,618,151
    • Issue date Apr 11, 2017
    • Adriaan DeVilliers
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Muffler and engine system

    • Patent number 9,605,572
    • Issue date Mar 28, 2017
    • Briggs & Stratton Corporation
    • Jason J. Raasch
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Mixer assembly for exhaust aftertreatment system

    • Patent number 9,534,525
    • Issue date Jan 3, 2017
    • Tenneco Automotive Operating Company Inc.
    • Lawrence Dalimonte
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Emissions cleaning module

    • Patent number 9,528,411
    • Issue date Dec 27, 2016
    • Perkins Engines Company Limited
    • Naseer A. Niaz
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Emissions cleaning module and associated electronics support unit

    • Patent number 9,494,067
    • Issue date Nov 15, 2016
    • Perkins Engines Company Limited
    • Naseer A. Niaz
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Low pressure drop, high efficiency spark or particulate arresting d...

    • Patent number 9,121,319
    • Issue date Sep 1, 2015
    • Universal Acoustic & Emission Technologies
    • Elden F. Ray
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Tailor to fit muffler

    • Patent number 9,121,320
    • Issue date Sep 1, 2015
    • Tenneco Automotive Operating Company Inc.
    • Richard T. Carr
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Exhaust gas heat exchanger

    • Patent number 9,103,250
    • Issue date Aug 11, 2015
    • Calsonic Kansei Corporation
    • Mitsuru Iwasaki
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Exhaust system having a flow rotation element and method for operat...

    • Patent number 8,910,470
    • Issue date Dec 16, 2014
    • Ford Global Technologies, LLC
    • Mohammad Ali Moetakef
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Muffler for internal combustion engine

    • Patent number 8,844,673
    • Issue date Sep 30, 2014
    • Futaba Industrial Co., Ltd.
    • Katsuhiko Kainuma
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Method and system for homogenizing exhaust from an engine

    • Patent number 8,683,791
    • Issue date Apr 1, 2014
    • Toyota Motor Engineering & Manufacturing North America, Inc.
    • James M. Crane
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Exhaust filter

    • Patent number 8,627,921
    • Issue date Jan 14, 2014
    • Barry Mead
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Muffler and engine system

    • Patent number 8,485,313
    • Issue date Jul 16, 2013
    • Briggs & Stratton Corporation
    • Jason J. Raasch
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Noise attenuating device for a heating-ventilation-cooling system o...

    • Patent number 8,166,775
    • Issue date May 1, 2012
    • Ford Global Technologies, LLC
    • Michael Choi
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    System for generating shaft horsepower using waste heat

    • Patent number 8,069,666
    • Issue date Dec 6, 2011
    • Maxim Silencers, Inc.
    • Robert E. Cone
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Sound dampening flow channel device

    • Patent number 8,061,476
    • Issue date Nov 22, 2011
    • Tumane Enterprises Limited
    • Ralf Corin
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Exhaust system for a motorcycle, and motorcycle incorporating same

    • Patent number 8,033,357
    • Issue date Oct 11, 2011
    • Honda Motor Co., Ltd.
    • Tomoki Nishijima
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Exhaust flow distribution device

    • Patent number 7,997,071
    • Issue date Aug 16, 2011
    • Donaldson Company, Inc.
    • Jared D. Blaisdell
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Venturi muffler

    • Patent number 7,905,319
    • Issue date Mar 15, 2011
    • John T. Sullivan
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Silencer containing one or more porous bodies

    • Patent number 7,537,083
    • Issue date May 26, 2009
    • Silentor Holdings A/S
    • Svend Frederiksen
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Patents Applicationslast 30 patents

  • Information Patent Application

    AIR-TRANSPARENT SELECTIVE SOUND SILENCER USING ULTRA-OPEN METAMATERIAL

    • Publication number 20240077008
    • Publication date Mar 7, 2024
    • Trustees of Boston University
    • Xin Zhang
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    A sound attenuator as well as elements and a method of production t...

    • Publication number 20220099006
    • Publication date Mar 31, 2022
    • Teknologian Tutkimuskeskus VTT Oy
    • Erin Komi
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    AIR-TRANSPARENT SELECTIVE SOUND SILENCER USING ULTRA-OPEN METAMATERIAL

    • Publication number 20210087957
    • Publication date Mar 25, 2021
    • Trustees of Boston University
    • Xin Zhang
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    RAMJET GENERATOR FOR INTAKE/EXHAUST PIPE

    • Publication number 20190128158
    • Publication date May 2, 2019
    • Dong Kyu LEE
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    VORTEX FLOW APPARATUS

    • Publication number 20180066563
    • Publication date Mar 8, 2018
    • VTX TECHNOLOGY LLC
    • David H. HILL
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Tailor to Fit Muffler

    • Publication number 20150053501
    • Publication date Feb 26, 2015
    • Tenneco Automotive Operating Company Inc.
    • Richard T. Carr
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    EXHAUST SYSTEM HAVING A FLOW ROTATION ELEMENT AND METHOD FOR OPERAT...

    • Publication number 20140338308
    • Publication date Nov 20, 2014
    • FORD GLOBAL TECHNOLOGIES, L.L.C.
    • Mohammad Ali Moetakef
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    EXHAUST GAS HEAT EXCHANGER

    • Publication number 20140238006
    • Publication date Aug 28, 2014
    • CALSONIC KANSEI CORPORATION
    • Mitsuru Iwasaki
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Application

    Low Pressure Drop, Hight Efficiency Spark or Particulate Arresting...

    • Publication number 20140102300
    • Publication date Apr 17, 2014
    • UNIVERSAL ACOUSTIC & EMISSION TECHNOLOGIES
    • Elden F. Ray
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    MUFFLER AND ENGINE SYSTEM

    • Publication number 20130277145
    • Publication date Oct 24, 2013
    • Jason J. Raasch
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Muffler for Internal Combustion Engine

    • Publication number 20120305330
    • Publication date Dec 6, 2012
    • FUTABA INDUSTRIAL CO., LTD.
    • Katsuhiko Kainuma
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    EXHAUST FILTER

    • Publication number 20120103719
    • Publication date May 3, 2012
    • VORTEX PERFORMANCE LIMITED
    • Barry Mead
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    METHOD AND SYSTEM FOR HOMOGENIZING EXHAUST FROM AN ENGINE

    • Publication number 20120042641
    • Publication date Feb 23, 2012
    • James M. Crane
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    MUFFLER AND ENGINE SYSTEM

    • Publication number 20110308236
    • Publication date Dec 22, 2011
    • Briggs & Stratton Corporation
    • Jason J. Raasch
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    EXHAUST GAS PURIFYING DEVICE FOR INTERNAL COMBUSTION ENGINE, AND SW...

    • Publication number 20110185710
    • Publication date Aug 4, 2011
    • TOKYO ROKI CO. LTD
    • Masaki Shimizu
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Venturi muffler

    • Publication number 20090308686
    • Publication date Dec 17, 2009
    • John T. Sullivan
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Exhaust system for a motorcycle, and motorcycle incorporating same

    • Publication number 20090114477
    • Publication date May 7, 2009
    • Honda Motor Co., Ltd.
    • Tomoki Nishijima
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Sound Dampening Flow Channel Device

    • Publication number 20090050404
    • Publication date Feb 26, 2009
    • Ralf Corin
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Noise Eliminator for Fuel Cell

    • Publication number 20090045006
    • Publication date Feb 19, 2009
    • Toshiyuki Kondo
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    EXHAUST FLOW DISTRIBUTION DEVICE

    • Publication number 20090031717
    • Publication date Feb 5, 2009
    • Donaldson Company, Inc.
    • Jared D. Blaisdell
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Combination Silencer

    • Publication number 20080023265
    • Publication date Jan 31, 2008
    • Silentor Holding A/S
    • Svend Frederiksen
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Silencer containing one or more porous bodies

    • Publication number 20060260867
    • Publication date Nov 23, 2006
    • Silentor Holding A/S
    • Svend Frederiksen
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Exhaust flow distribution device

    • Publication number 20060070375
    • Publication date Apr 6, 2006
    • Jared D. Blaisdell
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Detatchable muffler apparatus for pneumatic tools

    • Publication number 20050269152
    • Publication date Dec 8, 2005
    • Orlando Sellers
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Automobile muffler

    • Publication number 20050205353
    • Publication date Sep 22, 2005
    • Hui-Fang Chen
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    MUFFLER FOR INTERNAL COMBUSTION ENGINE

    • Publication number 20050133301
    • Publication date Jun 23, 2005
    • Jones Exhaust Systems, Inc.
    • David A. Butterfield
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Noise attenuating device for a heating-ventilation-cooling system o...

    • Publication number 20050076668
    • Publication date Apr 14, 2005
    • Michael Choi
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Exhaust gas muffler

    • Publication number 20050029039
    • Publication date Feb 10, 2005
    • Andreas Stihl AG & Co., KG
    • Georg Maier
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Tuned exhaust system for small engines

    • Publication number 20050023078
    • Publication date Feb 3, 2005
    • David R. Brower
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Manufacturing method of a muffler assembly

    • Publication number 20040163253
    • Publication date Aug 26, 2004
    • I-Long Wu
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR