Filings by year

B01D 53/66: granted patents and published applications per publication year
YearGranted patentsPublished applications
197810
197900
198010
198100
198200
198300
198400
198500
198600
198700
198800
198920
199000
199100
199210
199320
199410
199510
199600
199720
199820
199910
200000
200100
200201
200311
200402
200501
200603
200713
200812
200922
201054
201101
201231
201313
201427
201531
201639
201711
201836
201945
202042
202122
202201
202315
202411
202502
202604

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

Recent patents

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By later US patents