Filings by year

C01F 17/235: granted patents and published applications per publication year
YearGranted patentsPublished applications
197720
197800
197900
198010
198100
198210
198310
198400
198510
198610
198740
198800
198920
199030
199180
199240
199310
199460
199530
199620
199710
199860
199970
200020
200140
200228
20031015
20041218
2005714
2006922
2007816
2008714
20091523
2010829
20112022
20121411
20131220
20141213
20151722
20161522
20171319
20182323
20191934
20201116
20211520
20221921
20231319
2024914
20251424
2026417

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

Recent patents

Most cited

By later US patents