Filings by year

C11D 3/3907: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976180
1977120
1978200
1979100
1980110
198150
198200
198360
198470
198590
198650
198770
198880
198980
1990170
1991160
1992200
199380
1994160
1995240
1996270
1997230
1998360
1999400
2000350
20013311
20023019
20031719
20041719
2005920
2006813
2007712
2008810
20091016
2010314
2011720
201269
2013612
2014910
201579
2016513
2017722
2018611
2019915
2020612
2021816
2022914
202399
20241211
2025711
202677

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