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 1/22: Silencing apparatus characterised by method of silencing by using movable parts the parts being resilient walls
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 10100793 | Intake sound reduction device for internal combustion engine | Oct 21, 16 | Oct 16, 18 | Mahle Filter Systems Japan Corporation |
| 7905321 | Inserts for engine exhaust systems | Aug 28, 09 | Mar 15, 11 | Not available |
| 7819221 | Lightweight acoustic damping treatment | Sep 27, 05 | Oct 26, 10 | The United States of America as represented by the Secretary of the Air Force |
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