C07D 401/02
Containing two hetero rings
Official title: containing two hetero rings
C07D401/02 (Containing two hetero rings) appears on 27,016 US grants and 30,397 published applications in this corpus.
Search patents in C07D- Granted patents
- 27,016
- Published applications
- 30,397
- Assignees
- 5,776
- Inventors
- 53,362
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 80 | 0 |
| 1977 | 51 | 0 |
| 1978 | 33 | 0 |
| 1979 | 16 | 0 |
| 1980 | 20 | 0 |
| 1981 | 24 | 0 |
| 1982 | 32 | 0 |
| 1983 | 33 | 0 |
| 1984 | 86 | 0 |
| 1985 | 144 | 0 |
| 1986 | 165 | 0 |
| 1987 | 182 | 0 |
| 1988 | 223 | 0 |
| 1989 | 281 | 0 |
| 1990 | 283 | 0 |
| 1991 | 323 | 0 |
| 1992 | 253 | 0 |
| 1993 | 364 | 0 |
| 1994 | 285 | 0 |
| 1995 | 347 | 0 |
| 1996 | 416 | 0 |
| 1997 | 548 | 0 |
| 1998 | 482 | 0 |
| 1999 | 472 | 0 |
| 2000 | 470 | 0 |
| 2001 | 498 | 117 |
| 2002 | 623 | 598 |
| 2003 | 573 | 942 |
| 2004 | 487 | 1317 |
| 2005 | 540 | 1269 |
| 2006 | 640 | 1191 |
| 2007 | 700 | 1199 |
| 2008 | 649 | 1244 |
| 2009 | 773 | 1367 |
| 2010 | 906 | 1488 |
| 2011 | 923 | 1328 |
| 2012 | 1034 | 1130 |
| 2013 | 1129 | 1245 |
| 2014 | 1179 | 1415 |
| 2015 | 1231 | 1419 |
| 2016 | 1081 | 1345 |
| 2017 | 1185 | 1283 |
| 2018 | 1012 | 1251 |
| 2019 | 1034 | 1291 |
| 2020 | 1021 | 1311 |
| 2021 | 852 | 1178 |
| 2022 | 760 | 1150 |
| 2023 | 653 | 1331 |
| 2024 | 697 | 1198 |
| 2025 | 718 | 1024 |
| 2026 | 505 | 766 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C07D 401/12Linked by a chain containing hetero atoms as chain links15,026
- C07D 401/04Directly linked by a ring-member-to-ring-member bond10,537
- C07D 401/06Linked by a carbon chain containing only aliphatic carbon atoms5,768
- C07D 401/10Linked by a carbon chain containing aromatic rings2,228
- C07D 401/08Linked by a carbon chain containing alicyclic rings189
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Most cited
By later US patents
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