Filings by year

B01J 27/198: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976140
1977170
1978230
1979260
1980110
1981250
1982260
1983250
1984150
1985200
1986140
1987150
1988110
1989300
199080
199180
1992240
1993150
1994110
199560
1996170
199770
199880
1999160
2000100
200172
2002127
200378
20041114
200598
2006312
2007815
2008313
20091415
20101120
2011913
20121215
20131241
20142219
20152117
20161620
20171810
2018167
201977
202064
202169
202269
202324
202438
202546
202640

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

Subgroups

Granted patents

Recent patents

Most cited

By later US patents