Filings by year

F16K 1/228: granted patents and published applications per publication year
YearGranted patentsPublished applications
197620
197750
197820
197920
198020
198160
198210
198310
198410
198530
198630
198710
198800
198920
199020
199100
199200
199310
199410
199510
199610
199700
199800
199900
200010
200100
200221
200302
200430
200500
200601
200700
200800
200911
201002
201100
201211
201313
201431
201502
201614
201743
201861
201901
202012
202101
202223
202321
202401
202511

By publication year. Applications have been published since 2001.

Subgroups

Granted patents