Filings by year

C03C 17/256: granted patents and published applications per publication year
YearGranted patentsPublished applications
197610
197710
197800
197900
198020
198100
198210
198300
198410
198510
198610
198700
198810
198900
199000
199100
199210
199300
199400
199500
199620
199720
199820
199950
2000130
2001114
20021518
2003611
200487
2005611
200689
2007211
200829
200977
2010611
201176
201214
201362
201426
201545
201633
201725
201839
2019610
202057
202136
202236
202369
202479
202552
202616

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

Recent patents

Most cited

By later US patents