Filings by year

F02B 23/0657: granted patents and published applications per publication year
YearGranted patentsPublished applications
198410
198510
198610
198710
198830
198920
199010
199110
199210
199300
199400
199500
199600
199710
199810
199900
200000
200130
200210
200310
200402
200521
200621
200710
200812
200916
201024
201143
201232
201332
201430
201501
201600
201700
201810
201900
202000
202101
202200
202302
202422
202511

By publication year. Applications have been published since 2001.

Recent patents

Most cited

By later US patents