Filings by year

C11D 3/001: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976240
1977190
1978290
1979210
1980150
1981180
1982130
1983160
1984250
1985100
1986160
1987140
1988250
1989340
1990270
1991220
1992260
1993300
1994220
1995360
1996400
1997230
1998380
1999380
2000380
20013015
20023143
20033673
20044060
20054167
20063846
20071847
20081740
20092645
20101842
20113265
20122226
20132724
20141935
20152141
20163499
20173573
20182957
20193560
20204149
20213760
20223963
20233161
20241960
20254947
20263131

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