Filings by year

F04B 7/0053: granted patents and published applications per publication year
YearGranted patentsPublished applications
197630
197700
197800
197900
198020
198120
198210
198300
198410
198500
198620
198710
198800
198910
199010
199110
199200
199300
199400
199500
199600
199700
199800
199900
200000
200100
200200
200300
200400
200500
200601
200700
200800
200901
201001
201104
201212
201311
201422
201541
201603
201710
201822
201925
202024
202125
202246
202364
202441
202541
202610

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