Filings by year

B01D 71/02231: granted patents and published applications per publication year
YearGranted patentsPublished applications
197610
197700
197800
197900
198000
198100
198200
198300
198400
198510
198600
198720
198800
198910
199010
199100
199200
199330
199430
199510
199630
199770
1998100
199970
200070
2001183
2002712
20031114
2004914
2005614
2006921
2007713
2008811
2009812
20101418
20111310
20121413
2013813
2014177
20151321
201687
20171018
2018814
20191315
20201318
20211311
2022915
2023127
2024812
2025812
202654

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

Recent patents

Most cited

By later US patents