F01N 1/18

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
2021/0148,262 MULTI-MODE EXHAUST MUFFLERNov 15, 19May 20, 21Not available
2019/0203,619 EXHAUST SYSTEM HAVING TUNABLE EXHAUST SOUNDDec 28, 17Jul 04, 19Not available
2018/0371,972 Internal Combustion Engine with reduced noise and increased performanceJun 23, 17Dec 27, 18Not available
2018/0051,611 ELECTRIC VALVEDec 09, 16Feb 22, 18HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, SEJONG IND. CO., LTD.,
2008/0223,025 SNAP-ACTION VALVE FOR EXHAUST SYSTEMMar 03, 08Sep 18, 08TENNECO AUTOMOTIVE OPERATING COMPANY INC.