Filings by year

B01J 31/143: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976220
1977120
1978210
1979110
1980110
198190
198230
198340
198450
198560
198650
198750
198830
198980
199090
1991100
199280
199360
1994160
1995210
1996210
1997220
1998310
1999240
2000370
20013912
20025724
20032427
20042128
20052342
20062317
20072629
20081828
20091727
20101732
20112233
20121921
20132123
20141319
20152129
20163237
20172840
20183140
20194238
20203530
20213225
20223131
20232116
20241817
20251117
202656

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

Recent patents

Most cited

By later US patents