Filings by year

C01B 2203/1223: granted patents and published applications per publication year
YearGranted patentsPublished applications
197910
198020
198100
198200
198300
198400
198520
198610
198720
198850
198920
199000
199120
199200
199310
199410
199500
199620
199740
199850
199960
2000100
20011412
20021236
20032542
20042434
20051939
20062235
20072151
20081645
20092532
20104544
20113823
20123115
20132115
20141810
20151511
2016816
20171016
20181310
2019167
2020610
2021911
2022417
20231116
2024913
20251011
2026312

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

Recent patents

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By later US patents