Filings by year

F04B 45/073: granted patents and published applications per publication year
YearGranted patentsPublished applications
198310
198410
198500
198600
198700
198800
198900
199000
199100
199200
199300
199400
199500
199600
199700
199800
199900
200000
200100
200201
200310
200400
200500
200600
200700
200800
200900
201000
201100
201200
201300
201401
201511
201600
201711
201800
201910
202001
202100
202210
202301
202410
202500
202602

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