Filings by year

B01D 33/0338: granted patents and published applications per publication year
YearGranted patentsPublished applications
197910
198000
198110
198200
198300
198400
198500
198600
198700
198800
198900
199000
199100
199200
199300
199400
199500
199600
199710
199800
199900
200000
200100
200200
200300
200400
200500
200601
200700
200801
200901
201011
201110
201200
201321
201400
201510

By publication year. Applications have been published since 2001.