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 1/02: Silencing apparatus characterised by method of silencing by using resonance
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12227253 | Two-wheeled vehicle with fairing coupled to down tube assembly | Mar 17, 20 | Feb 18, 25 | Indian Motorcycle International, LLC |
| 12203397 | Impact energy absorber with integrated engine exhaust noise muffler | Feb 17, 21 | Jan 21, 25 | Divergent Technologies, Inc. |
| 12196114 | Meta-muffler for reducing broadband noise | Feb 06, 23 | Jan 14, 25 | CENTER FOR ADVANCED META-MATERIALS; Ajou University Industry-Academic Cooperation Foundation; |
| 12196115 | Propulsion flow path duct systems and methods | Aug 30, 23 | Jan 14, 25 | THE BOEING COMPANY |
| 12163450 | Resonator core with spiral slits | Apr 28, 22 | Dec 10, 24 | Not available |
| 12162562 | Exhaust system for an engine | Nov 30, 20 | Dec 10, 24 | BOMBARDIER RECREATIONAL PREODUCTS INC. |
| 12110849 | Acoustic component and air routing line having an acoustic component | Aug 17, 22 | Oct 08, 24 | Filterwek Mann & Hummel GmbH |
| 12091998 | Muffler | Jul 25, 22 | Sep 17, 24 | Purem GmbH |
| 12071874 | Sound attenuating engine exhaust system | Jan 22, 21 | Aug 27, 24 | K&N Engineering, Inc. |
| 12065952 | Muffler comprising one or more sensor ports | Jun 30, 22 | Aug 20, 24 | CNH Industrial America LLC |
| 12060818 | Muffler and method for making a muffler | Jun 17, 22 | Aug 13, 24 | Purem GmbH |
| 12037930 | Timbre scaled exhaust system | May 30, 23 | Jul 16, 24 | Not available |
| 12030364 | Pressure regulator warm up system for a transport refrigeration unit | Sep 26, 18 | Jul 09, 24 | Carrier Corporation |
| 12006855 | Muffler for small engines | Jun 29, 20 | Jun 11, 24 | ORBITAL AUSTRALIA PTY LTD |
| 11965442 | Sound mitigation for a duct | Jun 01, 22 | Apr 23, 24 | Toyota Motor Engineering & Manufacturing North America, Inc.; Toyota Jidosha Kabushiki Kaisha; |
| 11946398 | Broadband resonator with an entrained water removal system for a fuel cell compressor | Oct 12, 22 | Apr 02, 24 | Filterwek Mann & Hummel GmbH |
| 11919603 | Straddle-type vehicle | May 06, 22 | Mar 05, 24 | Zhejiang CFMOTO Power Co. Ltd. |
| 11912210 | Space-saving broadband resonator having a resonator insert | Sep 27, 21 | Feb 27, 24 | Filterwek Mann & Hummel GmbH |
| 11898474 | Constant velocity muffler assembly | Apr 27, 22 | Feb 13, 24 | Not available |
| 11897566 | Straddle type vehicle | Sep 04, 20 | Feb 13, 24 | Honda Motor Co. Ltd. |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0067,201 | Dual Mode Muffler | Aug 13, 24 | Feb 27, 25 | Not available |
| 2025/0026,445 | EXHAUST SYSTEM FOR AN ENGINE | Oct 03, 24 | Jan 23, 25 | Not available |
| 2025/0027,439 | MUFFLER | Dec 07, 22 | Jan 23, 25 | Marelli Corporation |
| 2024/0418,111 | SOUND ATTENUATING ENGINE EXHAUST SYSTEM | Aug 26, 24 | Dec 19, 24 | K&N Engineering, Inc. |
| 2024/0352,881 | EXHAUST SOUND ATTENUATION AND CONTROL SYSTEM | Jun 28, 24 | Oct 24, 24 | Not available |
| 2024/0218,819 | EXHAUST GAS TREATMENT UNIT | Aug 18, 22 | Jul 04, 24 | Not available |
| 2024/0208,599 | Straddle-Type Vehicle | Mar 04, 24 | Jun 27, 24 | Not available |
| 2024/0183,293 | AIR AMPLIFIER WITH NOISE SUPPRESSION | Feb 12, 24 | Jun 06, 24 | MSG Entertainment Group, LLC |
| 2024/0125,259 | BROADBAND RESONATOR WITH AN ENTRAINED WATER REMOVAL SYSTEM FOR A FUEL CELL COMPRESSOR | Oct 12, 22 | Apr 18, 24 | Not available |
| 2024/0102,407 | SOUND DAMPER | Sep 25, 23 | Mar 28, 24 | Not available |
| 2024/0035,405 | EXHAUST SOUND ATTENUATION AND CONTROL SYSTEM | Jul 27, 22 | Feb 01, 24 | Not available |
| 2023/0349,309 | Constant Velocity Muffler Assembly | Apr 27, 22 | Nov 02, 23 | Not available |
| 2023/0304,425 | DRONE ELIMINATION MUFFLER | May 12, 23 | Sep 28, 23 | K&N Engineering, Inc. |
| 2023/0184,146 | A MUFFLER HEAT-EXCHANGER FOR AN ENGINE EXHAUST, AND ENGINE EXHAUST SYSTEM, AND AN ENGINE SYSTEM | May 19, 21 | Jun 15, 23 | Not available |
| 2022/0250,704 | Straddle-Type Vehicle | Oct 28, 20 | Aug 11, 22 | Not available |
| 2022/0018,272 | MUFFLER OF AN EXHAUST SYSTEM | Jul 12, 21 | Jan 20, 22 | Not available |
| 2021/0301,694 | EXHAUST LINE FOR A VEHICLE AND VEHICLE WITH AN EXHAUST LINE | Mar 24, 21 | Sep 30, 21 | Not available |
| 2021/0231,035 | SOUND ATTENUATING ENGINE EXHAUST SYSTEM | Jan 22, 21 | Jul 29, 21 | K&N Engineering, Inc. |
| 2021/0231,036 | MUFFLER SYSTEM | Jan 08, 21 | Jul 29, 21 | Not available |
| 2021/0222,594 | Tunable Exhaust System | Jan 19, 21 | Jul 22, 21 | Not available |
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