Filings by year

C21D 8/0431: granted patents and published applications per publication year
YearGranted patentsPublished applications
197710
197800
197900
198000
198100
198200
198300
198400
198500
198610
198710
198800
198920
199010
199120
199200
199300
199410
199500
199600
199700
199800
199900
200010
200110
200200
200300
200401
200520
200601
200700
200800
200901
201011
201111
201211
201300
201410
201501
201600
201700
201823
201901
202021
202102
202211
202311
202410
202500
202611

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

Recent patents

Most cited

By later US patents