| 2022/0034,244 | SOUND SUPPRESSION DEVICE FOR GAS CAPTURE SYSTEM OF CYCLOTRON PRODUCT | Nov 27, 19 | Feb 03, 22 | Not available |
| 2018/0355,773 | SILENCER AND EJECTOR IN WHICH SILENCER IS USED | Jun 05, 18 | Dec 13, 18 | SMC Corporation |
| 2017/0089,239 | EXHAUST MUFFLER AND SOUND DEADENING ELEMENT | Sep 12, 16 | Mar 30, 17 | HONDA MOTOR CO., LTD. |
| 2016/0061,074 | MUFFLER | Aug 26, 15 | Mar 03, 16 | Eberspacher Exhaust Technology GmbH & Co. KG |
| 2015/0233,276 | MODULAR ASSEMBLY FOR AFTERTREATMENT SYSTEM | May 04, 15 | Aug 20, 15 | CATERPILLAR INC. |
| 2014/0196,977 | SILENCER AND METHOD FOR MANUFACTURING THE SAME | Jan 10, 14 | Jul 17, 14 | Henn GmbH & Co KG. |
| 2013/0220,732 | MUFFLER WITH DUAL EXHAUST GAS DISCHARGE PIPE FOR VEHICLE | Sep 14, 12 | Aug 29, 13 | HYUNDAI MOTOR COMPANY |
| 2013/0213,734 | HORIZONTALLY INSTALLED MUFFLER HAVING SPORTY TONE | Jun 04, 12 | Aug 22, 13 | HYUNDAI MOTOR COMPANY |
| 2013/0092,471 | Active Sound Absorbers | Oct 11, 12 | Apr 18, 13 | EBERSPAECHER EXHAUST TECHNOLOGY GMBH & CO. KG |
| 2012/0055,735 | Acoustic Attenuation Method Based on Acoustic Ray Deflection Theory and a Muffler | Feb 26, 10 | Mar 08, 12 | INSTITUTE OF ACOUSTICS, CHINESE ACADEMY OF SCIENCES |
| 2012/0031,698 | MOTORCYCLE | Aug 02, 11 | Feb 09, 12 | HONDA MOTOR CO., LTD. |
| 2011/0048,849 | EXTERNAL CYLINDER AND SILENCER PROVIDED WITH THE EXTERNAL CYLINDER | Mar 24, 10 | Mar 03, 11 | HONDA MOTOR CO., LTD. |
| 2011/0005,856 | EXHAUST SILENCER | Jan 02, 09 | Jan 13, 11 | WARTSILA FINLAND OY |
| 2011/0005,860 | EXHAUST COMPONENT WITH REDUCED PACK | Jul 13, 09 | Jan 13, 11 | EMCON TECHNOLOGIES LLC |
| 2010/0307,863 | COMPOSITE MUFFLER SYSTEM THERMOSETABLE POLYMERS | Dec 12, 08 | Dec 09, 10 | OCV INTELLECTUAL CAPITAL, LLC |
| 2010/0252,360 | ABSORPTIVE MUFFLER SUSPENSION | Jun 22, 10 | Oct 07, 10 | Not available |
| 2010/0213,000 | VEHICULAR MUFFLER AND MOTORCYCLE INCORPORATING SAME | Feb 18, 10 | Aug 26, 10 | HONDA MOTOR CO., LTD. |
| 2010/0115,931 | METHOD OF FORMING SHEET MEMBER, EXHAUST GAS TREATMENT APPARATUS INCLUDING THE SHEET MEMBER, AND MUFFLING APPARATUS INCLUDING THE SHEET MEMBER | Dec 21, 09 | May 13, 10 | IBIDEN CO., LTD. |
| 2010/0101,890 | MUFFLER OF A EXHAUST SYSTEM | Feb 22, 08 | Apr 29, 10 | Not available |
| 2009/0200,105 | SILENCER APPARATUS WITH DISPOSABLE SILENCER CARTRIDGE UNIT | Feb 13, 08 | Aug 13, 09 | ENDUSTRA FILTER MANUFACTURERS |