C07D 407/02
Containing two hetero rings
Official title: containing two hetero rings
C07D407/02 (Containing two hetero rings) appears on 2,746 US grants and 2,817 published applications in this corpus.
Search patents in C07D- Granted patents
- 2,746
- Published applications
- 2,817
- Assignees
- 1,321
- Inventors
- 9,184
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 7 | 0 |
| 1978 | 8 | 0 |
| 1979 | 6 | 0 |
| 1980 | 9 | 0 |
| 1981 | 14 | 0 |
| 1982 | 8 | 0 |
| 1983 | 12 | 0 |
| 1984 | 17 | 0 |
| 1985 | 30 | 0 |
| 1986 | 23 | 0 |
| 1987 | 33 | 0 |
| 1988 | 32 | 0 |
| 1989 | 37 | 0 |
| 1990 | 34 | 0 |
| 1991 | 47 | 0 |
| 1992 | 44 | 0 |
| 1993 | 45 | 0 |
| 1994 | 34 | 0 |
| 1995 | 47 | 0 |
| 1996 | 45 | 0 |
| 1997 | 57 | 0 |
| 1998 | 45 | 0 |
| 1999 | 40 | 0 |
| 2000 | 56 | 0 |
| 2001 | 43 | 15 |
| 2002 | 58 | 54 |
| 2003 | 47 | 73 |
| 2004 | 50 | 100 |
| 2005 | 43 | 108 |
| 2006 | 45 | 75 |
| 2007 | 36 | 77 |
| 2008 | 51 | 84 |
| 2009 | 70 | 93 |
| 2010 | 64 | 111 |
| 2011 | 60 | 100 |
| 2012 | 84 | 137 |
| 2013 | 97 | 113 |
| 2014 | 125 | 158 |
| 2015 | 117 | 150 |
| 2016 | 130 | 151 |
| 2017 | 116 | 123 |
| 2018 | 109 | 130 |
| 2019 | 97 | 138 |
| 2020 | 119 | 156 |
| 2021 | 101 | 114 |
| 2022 | 80 | 108 |
| 2023 | 81 | 135 |
| 2024 | 79 | 121 |
| 2025 | 69 | 115 |
| 2026 | 40 | 78 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C07D 407/12Linked by a chain containing hetero atoms as chain links1,567
- C07D 407/04Directly linked by a ring-member-to-ring-member bond655
- C07D 407/06Linked by a carbon chain containing only aliphatic carbon atoms519
- C07D 407/10Linked by a carbon chain containing aromatic rings169
- C07D 407/08Linked by a carbon chain containing alicyclic rings33
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Most cited
By later US patents
- Photochromic indeno-fused naphthopyrans245US 5,645,767 ATransitions Optical, Inc. · 1997
- Recombinant production of novel polyketides221US 5,672,491 ALeland Stanford Junior University · 1997
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- Polymerizable polyalkoxylated naphthopyrans186US 6,113,814 ATransitions Optical, Inc. · 2000
- Photochromic naphthopyran compounds182US 5,384,077 ATransitions Optical, Inc. · 1995