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 1/24: Silencing apparatus characterised by method of silencing by using sound-absorbing materials (F01N 1/04, F01N 1/06, F01N 1/1, F01N 1/14, F01N 1/16 take precedence)
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12188389 | Method for filling silencer with sound absorbing material | Jul 09, 21 | Jan 07, 25 | Yutaka Glken Co., Ltd. |
| 12146507 | Air warmer | Apr 19, 17 | Nov 19, 24 | ICU Medical, Inc. |
| 12116913 | Exhaust gas assembly | Sep 13, 19 | Oct 15, 24 | The University of Adelaide |
| 12084955 | Fracturing device | Oct 13, 22 | Sep 10, 24 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. |
| 12050032 | Muffler with metallic meshed rings | Aug 18, 23 | Jul 30, 24 | Carrier Corporation |
| 11970928 | Fracturing device | Oct 13, 22 | Apr 30, 24 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. |
| 11852059 | Noise muffler for an air moving device | Jul 22, 22 | Dec 26, 23 | Rheem Manufacturing Company |
| 11808490 | Muffler with metallic meshed rings | Oct 09, 18 | Nov 07, 23 | Carrier Corporation |
| 11795847 | Exhaust muffler | Nov 20, 20 | Oct 24, 23 | Purem GmbH |
| 11746682 | Method for manufacturing a vehicle muffler | Mar 04, 22 | Sep 05, 23 | NAKAGAWA SANGYO CO., LTD. |
| 11725315 | Method for producing a fibrous mat for the acoustic and/or thermal insulation of a component of a motor vehicle | Mar 16, 17 | Aug 15, 23 | SO.LA.IS.—SOCIETA' LAVORAZIONE ISOLANTI—S.R.L. CON UNICO SOCIO |
| 11725573 | Two-passage exhaust system for an engine | Jan 09, 21 | Aug 15, 23 | Polaris Industries Inc. |
| 11415032 | Noise muffler for an air moving device | Dec 23, 19 | Aug 16, 22 | Rheem Manufacturing Company |
| 11371404 | Engine muffler apparatus | Aug 13, 19 | Jun 28, 22 | Not available |
| 11286820 | Method and apparatus for filling silencer with glass fiber | Oct 12, 18 | Mar 29, 22 | CREFACT CO., LTD. |
| 11242793 | Muffler assembly unit | Jan 16, 19 | Feb 08, 22 | Purem GmbH |
| 11230961 | Systems for and methods of filling mufflers with fibrous material | Mar 18, 21 | Jan 25, 22 | Owens Corning Intellectual Capital LLC |
| 11225897 | Vehicle exhaust system | Jul 23, 19 | Jan 18, 22 | Tenneco Automotive Operating Company Inc. |
| 11181031 | Muffler | Oct 16, 18 | Nov 23, 21 | Honda Motor Co., Ltd. |
| 11143071 | Hybrid acoustic silencer | Apr 19, 19 | Oct 12, 21 | Cascade Engineering Inc. |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0352,947 | AIR WARMER | Jun 24, 24 | Oct 24, 24 | SMITHS MEDICAL ASD, INC. |
| 2024/0229,693 | EXHAUST MUFFLER FOR INTERNAL COMBUSTION ENGINES | Jan 08, 24 | Jul 11, 24 | Not available |
| 2024/0175,381 | MUFFLER FOR AN EXHAUST SYSTEM | Nov 29, 23 | May 30, 24 | Not available |
| 2024/0167,403 | ACOUSTIC METAMATERIAL-BASED MUFFLER FOR EXHAUST NOISE REDUCTION | Nov 22, 23 | May 23, 24 | Ajou University Industry-Academic Cooperation Foundation; THE CENTER FOR ADVANCED META-MATERIALS; |
| 2023/0279,797 | SOUND ABSORBING ELEMENT WITH LOW PROFILE MICRO-LOUVER SLITS AND MUFFLER ASSEMBLY USING THE SAME | Mar 02, 23 | Sep 07, 23 | ACS Industries, Inc. |
| 2021/0189,927 | NOISE MUFFLER FOR AN AIR MOVING DEVICE | Dec 23, 19 | Jun 24, 21 | Not available |
| 2019/0292,955 | METHOD OF PROVIDING A LEAK FREE ACOUSTIC VOLUME FOR A VEHICLE FRAME MEMBER | Mar 20, 18 | Sep 26, 19 | Not available |
| 2019/0003,358 | Exhaust Stack Assemblies with Acoustic Attenuation Features | Jun 28, 17 | Jan 03, 19 | Not available |
| 2018/0291,782 | INSULATOR | Feb 15, 18 | Oct 11, 18 | TOYO TIRE & RUBBER CO., LTD. |
| 2018/0058,302 | Repackable Muffler | Aug 24, 17 | Mar 01, 18 | 2747-6035 QUEBEC INC. |
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