Filings by year

C04B 35/6348: granted patents and published applications per publication year
YearGranted patentsPublished applications
197710
197800
197900
198000
198100
198200
198300
198400
198500
198600
198700
198800
198900
199010
199100
199200
199300
199400
199500
199600
199710
199800
199900
200010
200101
200200
200300
200400
200500
200600
200700
200801
200900
201011
201101
201211
201300
201401
201500
201610
201703
201810
201903
202020
202111
202201
202310
202400
202510

By publication year. Applications have been published since 2001.

Recent patents

Most cited

By later US patents