Filings by year

C01B 17/0434: granted patents and published applications per publication year
YearGranted patentsPublished applications
197620
197720
197800
197900
198000
198100
198210
198310
198420
198520
198630
198710
198800
198930
199000
199130
199230
199300
199410
199500
199620
199710
199800
199910
200020
200100
200200
200302
200411
200501
200610
200700
200810
200902
201010
201100
201200
201301
201401
201510
201610
201701
201810
201901
202002
202121
202211
202323
202411
202502
202611

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

Recent patents

Most cited

By later US patents