Filings by year

C04B 38/064: granted patents and published applications per publication year
YearGranted patentsPublished applications
197610
197700
197810
197910
198000
198100
198200
198310
198400
198500
198610
198700
198810
198900
199000
199100
199200
199310
199400
199500
199600
199700
199800
199900
200000
200120
200201
200301
200421
200502
200601
200702
200800
200920
201024
201140
201201
201300
201411
201500
201602
201710
201810
201901
202000
202110
202201

By publication year. Applications have been published since 2001.

Recent patents

Most cited

By later US patents