Filings by year

C01F 7/70: granted patents and published applications per publication year
YearGranted patentsPublished applications
197610
197710
197800
197900
198000
198110
198200
198300
198400
198500
198600
198700
198800
198900
199000
199100
199200
199310
199400
199500
199600
199700
199800
199900
200000
200100
200200
200310
200400
200500
200600
200700
200800
200901
201000
201110
201200
201300
201401
201500
201600
201700
201800
201900
202000
202100
202201
202300
202401

By publication year. Applications have been published since 2001.

Recent patents

Most cited

By later US patents