Filings by year

F04B 7/003: granted patents and published applications per publication year
YearGranted patentsPublished applications
197710
197800
197900
198000
198100
198200
198310
198400
198500
198600
198700
198800
198930
199000
199100
199200
199300
199400
199500
199600
199700
199800
199910
200000
200110
200200
200300
200401
200501
200600
200710
200800
200900
201001
201100
201200
201311
201400
201500
201610
201701
201801
201910
202000
202113
202210
202302
202420
202521

By publication year. Applications have been published since 2001.