F01N 1/20

Sub-Class

Watch

Stats

Description

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 1/20: Silencing apparatus characterised by method of silencing by using movable parts having oscillating or vibrating movement (the parts being resilient walls F01N 1/22)

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
10253664 Passive exhaust valve assembly with overlapping slip joint and method of forming and installationNov 08, 16Apr 09, 19Middleville Tool & Die Co, Inc
9422843 Resonance generating mufflerSep 08, 13Aug 23, 16Not available
7559406 Acoustic fluid machineMar 21, 07Jul 14, 09ANEST IWATA CORPORATION

more results

Recent Publications

Not Available

Top Owners in This Subclass

Upgrade to the Professional Level to view Top Owners for this Subclass.Learn More

Patents Issued To Date - By Filing Year

Average Time to Issuance