Filings by year

C04B 35/62831: granted patents and published applications per publication year
YearGranted patentsPublished applications
197920
198000
198100
198200
198300
198400
198500
198600
198700
198810
198900
199000
199100
199200
199310
199410
199510
199620
199700
199820
199910
200020
200140
200210
200313
200433
200511
200613
200713
200815
200933
201024
201136
201238
201353
201423
201535
201653
201764
201834
201938
202037
202179
202221
202363
202463
202525
202624

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

Subgroups

Granted patents

Recent patents

Most cited

By later US patents