Filings by year

C23C 22/28: granted patents and published applications per publication year
YearGranted patentsPublished applications
197710
197800
197910
198000
198100
198200
198300
198400
198500
198600
198720
198800
198910
199010
199100
199200
199300
199400
199520
199600
199720
199800
199900
200000
200100
200210
200300
200400
200500
200600
200700
200800
200900
201000
201100
201200
201300
201400
201500
201600
201701
201801
201901
202011
202101
202221
202310
202400
202510
202601

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

Recent patents

Most cited

By later US patents