Filings by year

C01F 7/168: granted patents and published applications per publication year
YearGranted patentsPublished applications
198810
198900
199000
199100
199200
199300
199400
199500
199600
199700
199800
199900
200000
200100
200211
200300
200400
200511
200600
200700
200800
200912
201000
201100
201201
201301
201401
201520
201600
201700
201800
201901
202000
202100
202211
202300
202400
202510

By publication year. Applications have been published since 2001.

Recent patents

Most cited

By later US patents