Filings by year

C01F 17/259: granted patents and published applications per publication year
YearGranted patentsPublished applications
198810
198900
199000
199100
199200
199300
199400
199500
199600
199700
199800
199900
200000
200110
200201
200321
200400
200500
200600
200700
200802
200910
201010
201101
201200
201301
201412
201500
201620
201701
201801
201922
202004
202111
202213
202366
202425
202531
202621

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

Recent patents

Most cited

By later US patents