Filings by year

F04B 27/0891: granted patents and published applications per publication year
YearGranted patentsPublished applications
199920
200050
200140
200202
200310
200401
200501
200604
200711
200810
200900
201000
201100
201200
201303
201402
201513
201624
201724
201812
201920
202013
202123
202220
202321
202421
202501
202611

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

Recent patents

Most cited

By later US patents