Filings by year

C23F 13/22: granted patents and published applications per publication year
YearGranted patentsPublished applications
197710
197800
197900
198000
198110
198210
198300
198420
198500
198600
198700
198800
198900
199010
199110
199200
199300
199410
199500
199600
199710
199800
199910
200000
200110
200204
200311
200453
200510
200636
200733
200831
200901
201026
201114
201244
201315
201438
201536
201637
201758
201848
2019612
202089
2021913
202256
2023612
20241710
2025712
202625

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

Recent patents

Most cited

By later US patents