Filings by year

F02N 15/063: granted patents and published applications per publication year
YearGranted patentsPublished applications
197710
197800
197900
198010
198110
198220
198300
198410
198500
198600
198700
198800
198900
199020
199140
199210
199320
199400
199510
199610
199710
199800
199910
200000
200110
200213
200325
200426
200523
200653
200732
200833
200913
201026
201115
2012410
201336
201423
201595
201633
201750
201813
201951
202011
202121
202211
202310

By publication year. Applications have been published since 2001.