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 1/04: Silencing apparatus characterised by method of silencing by using resonance having sound-absorbing materials in resonance chambers
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12180917 | High temperature noise and vibration enabler for composite resonator | Jul 13, 22 | Dec 31, 24 | GM Global Technology Operations LLC |
| 12146507 | Air warmer | Apr 19, 17 | Nov 19, 24 | ICU Medical, Inc. |
| 12071875 | Exhaust device and method of manufacturing thereof | May 13, 22 | Aug 27, 24 | Tenneco Automotive Operating Company Inc. |
| 11852058 | Silencing apparatus and method for manufacturing silencing apparatus | Feb 07, 20 | Dec 26, 23 | Sankei Giken Kogyo Co. Ltd. |
| 11808187 | Noise attenuation components | Mar 01, 21 | Nov 07, 23 | Caterpillar Inc. |
| 11698008 | Exhaust device | Feb 14, 20 | Jul 11, 23 | Tenneco Automotive Operating Company Inc. |
| 11680502 | Muffler | Feb 05, 21 | Jun 20, 23 | Futaba Industrial Co. Ltd. |
| 11536174 | Acoustic damper for gas turbine combustors with orthogonal slots | Jul 19, 18 | Dec 27, 22 | President and Fellows of Harvard College; Siemens Canada Limited; |
| 11486282 | Vacuum cleaner and electric motor module thereof | Jan 06, 20 | Nov 01, 22 | MIDEA GROUP CO., LTD. |
| 11459921 | Acoustic absorber for fan noise reduction | Mar 08, 19 | Oct 04, 22 | Toyota Motor Engineering & Manufacturing North America, Inc. |
| 11443726 | Sound isolation window and heat dissipation structure | Dec 12, 19 | Sep 13, 22 | Inventec (Pudong) Technology Corporation; Inventec Corporation; |
| 11286820 | Method and apparatus for filling silencer with glass fiber | Oct 12, 18 | Mar 29, 22 | CREFACT CO., LTD. |
| 11280235 | Muffler structure | Feb 06, 20 | Mar 22, 22 | Guang Rong Enterprise Co., Ltd. |
| 11143070 | Muffler for an exhaust system of an internal combustion engine | May 30, 19 | Oct 12, 21 | Faurecia Emissions Control Technologies, Germany GmbH |
| 10947879 | Exhaust heat recovery system | Oct 15, 19 | Mar 16, 21 | Hyundai Motor Company; Kia Motors Corporation; |
| 10875624 | Carbon flocked tape | Jan 11, 17 | Dec 29, 20 | TOYOTA TSUSHO AMERICA, INC. |
| 10518632 | Valve assembly | Jul 25, 18 | Dec 31, 19 | Tenneco Automotive Operating Company Inc. |
| 10473121 | Turbocharger with a wastegate noise reduction device | Jan 31, 18 | Nov 12, 19 | GM Global Technology Operations LLC |
| 10458589 | Sound suppression apparatus | Jul 15, 15 | Oct 29, 19 | AAF Ltd. |
| 10344656 | Mixing apparatus for an exhaust gas aftertreatment system, exhaust gas aftertreatment system and internal combustion engine | Dec 06, 17 | Jul 09, 19 | MAN Energy Solutions SE |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0352,947 | AIR WARMER | Jun 24, 24 | Oct 24, 24 | SMITHS MEDICAL ASD, INC. |
| 2024/0102,408 | MUFFLER FOR GENERATING A SPORTY AND RHYTHMIC SOUND AND A VEHICLE EQUIPPED WITH THE SAME | Sep 20, 23 | Mar 28, 24 | Hyundai Motor Company; KIA CORPORATION; |
| 2024/0003,275 | ACOUSTIC IMPEDANCE CHANGE STRUCTURE AND AIR PASSAGE TYPE SILENCER | Sep 18, 23 | Jan 04, 24 | FUJIFILM Corporation |
| 2023/0366,337 | EXHAUST DEVICE AND METHOD OF MANUFACTURING THEREOF | May 13, 22 | Nov 16, 23 | Not available |
| 2023/0089,571 | METHOD AND APPARATUS FOR SUPPRESSING UNDESIRABLE TONES IN AN EXHAUST SYSTEM | Dec 02, 22 | Mar 23, 23 | Not available |
| 2022/0341,352 | EXHAUST COMPONENT WITH FLEXIBLE MEMBRANE | Apr 21, 21 | Oct 27, 22 | Not available |
| 2020/0378,285 | EXHAUST HEAT RECOVERY SYSTEM | Oct 15, 19 | Dec 03, 20 | Hyundai Motor Company; Kia Motors Corporation; |
| 2020/0256,227 | EXHAUST SYSTEM AS WELL AS MOTOR VEHICLE WITH AN EXHAUST SYSTEM | Aug 31, 17 | Aug 13, 20 | Not available |
| 2020/0080,451 | METHOD AND APPARATUS FOR SUPPRESSING UNDESIRABLE TONES IN AN EXHAUST SYSTEM | Sep 12, 19 | Mar 12, 20 | TMG Performance Products, LLC |
| 2019/0292,955 | METHOD OF PROVIDING A LEAK FREE ACOUSTIC VOLUME FOR A VEHICLE FRAME MEMBER | Mar 20, 18 | Sep 26, 19 | Not available |
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