Filings by year

F01B 25/04: granted patents and published applications per publication year
YearGranted patentsPublished applications
197630
197720
197800
197900
198000
198100
198200
198310
198400
198500
198600
198700
198800
198900
199000
199100
199200
199300
199410
199500
199600
199700
199800
199900
200000
200100
200210
200300
200401
200500
200600
200700
200800
200900
201000
201100
201200
201303
201410
201521
201610
201701
201800
201911
202010
202100
202200
202300
202410
202501
202610

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

Subgroups

Granted patents

Recent patents

Most cited

By later US patents