Filings by year

C04B 38/069: granted patents and published applications per publication year
YearGranted patentsPublished applications
198310
198400
198500
198600
198700
198800
198900
199000
199100
199200
199300
199400
199500
199600
199700
199800
199900
200000
200100
200200
200300
200400
200501
200603
200701
200820
200910
201001
201100
201200
201310
201400
201500
201600
201700
201800
201901
202010
202100
202201
202300
202400
202500
202602

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

Recent patents

Most cited

By later US patents