Filings by year

F04B 27/067: granted patents and published applications per publication year
YearGranted patentsPublished applications
199010
199110
199200
199300
199400
199500
199600
199700
199800
199900
200000
200100
200200
200300
200400
200500
200602
200700
200800
200900
201002
201100
201202
201312
201412
201520
201601
201710
201813
201910
202010
202132
202222
202332
202401
202520
202620

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