Filings by year

C04B 41/4541: granted patents and published applications per publication year
YearGranted patentsPublished applications
199410
199500
199600
199710
199810
199900
200000
200100
200200
200301
200410
200500
200600
200700
200800
200900
201000
201100
201200
201300
201400
201500
201600
201700
201800
201901
202010
202100
202200
202300
202400
202500
202601

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

Recent patents

Most cited

By later US patents