Filings by year

B01D 2321/346: granted patents and published applications per publication year
YearGranted patentsPublished applications
197910
198000
198100
198200
198300
198400
198500
198600
198710
198800
198900
199010
199110
199200
199300
199400
199510
199600
199720
199800
199910
200030
200110
200230
200302
200400
200501
200620
200700
200801
200900
201010
201100
201210
201300
201400
201500
201600
201700
201800
201901
202002
202112
202210
202310
202410

By publication year. Applications have been published since 2001.