Filings by year

C07D 231/20: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976190
1977160
1978230
197970
1980110
1981110
198280
1983130
198490
1985120
198650
198780
198850
1989100
1990150
1991120
199260
1993170
199450
1995100
199690
1997130
1998130
1999170
2000210
2001151
20021512
20031913
20041139
20051733
20061428
20071429
20081232
20091930
20102130
20112126
20122128
20132734
20142825
20152819
20161423
20173030
20182229
20191920
20201919
20211427
20221520
20231527
20241218
20251815
20261111

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