Filings by year

D01H 13/18: granted patents and published applications per publication year
YearGranted patentsPublished applications
197620
197720
197810
197900
198010
198110
198230
198330
198440
198560
198640
198730
198830
198910
199080
199100
199210
199310
199410
199510
199600
199700
199810
199900
200000
200110
200200
200300
200400
200500
200600
200700
200800
200900
201000
201100
201200
201301
201400
201510
201600
201700
201800
201900
202000
202100
202201
202311

By publication year. Applications have been published since 2001.

Subgroups

Granted patents

Recent patents

Most cited

By later US patents