Filings by year

F04C 2/104: granted patents and published applications per publication year
YearGranted patentsPublished applications
197630
197720
197820
197920
198000
198120
198220
198320
198470
198540
198630
198740
198830
198940
199030
199150
199240
199320
199420
199520
199600
199720
199810
199900
200080
200130
200231
200313
200494
200505
200622
200742
200812
200911
201012
201112
201230
201300
201423
201520
201632
201702
201801
201912
202021
202111
202210
202323
202422
202520
202602

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.