Filings by year

C01F 11/34: granted patents and published applications per publication year
YearGranted patentsPublished applications
197810
197900
198010
198110
198200
198300
198400
198510
198600
198710
198810
198900
199000
199100
199200
199300
199400
199500
199600
199710
199810
199900
200000
200100
200200
200301
200400
200500
200612
200700
200800
200900
201010
201100
201200
201300
201400
201502
201600
201721
201802
201910
202021
202100
202201
202310

By publication year. Applications have been published since 2001.

Recent patents

Most cited

By later US patents