Filings by year

F27B 9/023: granted patents and published applications per publication year
YearGranted patentsPublished applications
197620
197710
197800
197900
198010
198120
198210
198310
198410
198500
198610
198700
198830
198930
199030
199130
199200
199300
199410
199510
199600
199710
199810
199910
200020
200170
200221
200310
200413
200512
200621
200710
200811
200901
201011
201111
201201
201301
201412
201500
201611
201702
201800
201900
202020
202100
202210
202300
202401
202501

By publication year. Applications have been published since 2001.

Subgroups

Granted patents

Recent patents

Most cited

By later US patents