Filings by year

C01B 3/16: granted patents and published applications per publication year
YearGranted patentsPublished applications
197640
197760
197850
197970
198040
198190
198220
198350
198420
198570
198630
198740
198820
198950
199030
199120
199230
199320
199410
199530
199620
199710
199820
199930
200050
200143
2002635
20032025
20041943
20051824
20061220
20072127
20081117
20091726
20102240
20112235
20121633
20132712
20142951
20152223
20163422
20171421
20182215
201999
20201013
20211013
2022818
20231339
20241232
20251724
2026711

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

Recent patents

Most cited

By later US patents