Filings by year

C01F 17/212: granted patents and published applications per publication year
YearGranted patentsPublished applications
197910
198000
198100
198200
198300
198400
198500
198610
198700
198810
198910
199040
199150
199200
199300
199400
199500
199600
199700
199800
199900
200000
200100
200200
200310
200400
200500
200600
200700
200800
200900
201000
201101
201202
201301
201422
201516
201634
201723
201855
201963
202042
202126
202230
202315
202411
202522
202621

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

Recent patents

Most cited

By later US patents