Filings by year

B01D 46/78: granted patents and published applications per publication year
YearGranted patentsPublished applications
198910
199000
199100
199200
199300
199400
199500
199600
199700
199800
199900
200000
200100
200210
200320
200401
200501
200601
200722
200800
200900
201001
201100
201200
201302
201401
201510
201600
201710
201811
201901
202010
202102
202202
202300
202400
202521

By publication year. Applications have been published since 2001.