C07D 311/04
Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
C07D311/04 (Benzo[b]pyrans, not hydrogenated in the carbocyclic ring) appears on 3,830 US grants and 3,038 published applications in this corpus.
Search patents in C07D- Granted patents
- 3,830
- Published applications
- 3,038
- Assignees
- 1,767
- Inventors
- 10,065
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 38 | 0 |
| 1977 | 36 | 0 |
| 1978 | 70 | 0 |
| 1979 | 67 | 0 |
| 1980 | 81 | 0 |
| 1981 | 49 | 0 |
| 1982 | 40 | 0 |
| 1983 | 29 | 0 |
| 1984 | 30 | 0 |
| 1985 | 43 | 0 |
| 1986 | 43 | 0 |
| 1987 | 63 | 0 |
| 1988 | 49 | 0 |
| 1989 | 67 | 0 |
| 1990 | 59 | 0 |
| 1991 | 55 | 0 |
| 1992 | 64 | 0 |
| 1993 | 80 | 0 |
| 1994 | 67 | 0 |
| 1995 | 76 | 0 |
| 1996 | 87 | 0 |
| 1997 | 121 | 0 |
| 1998 | 105 | 0 |
| 1999 | 122 | 0 |
| 2000 | 102 | 0 |
| 2001 | 90 | 20 |
| 2002 | 112 | 104 |
| 2003 | 103 | 167 |
| 2004 | 90 | 165 |
| 2005 | 71 | 151 |
| 2006 | 89 | 147 |
| 2007 | 63 | 128 |
| 2008 | 71 | 125 |
| 2009 | 75 | 129 |
| 2010 | 98 | 138 |
| 2011 | 88 | 108 |
| 2012 | 96 | 105 |
| 2013 | 98 | 126 |
| 2014 | 86 | 127 |
| 2015 | 117 | 153 |
| 2016 | 102 | 145 |
| 2017 | 115 | 115 |
| 2018 | 90 | 119 |
| 2019 | 107 | 94 |
| 2020 | 80 | 110 |
| 2021 | 72 | 101 |
| 2022 | 70 | 111 |
| 2023 | 68 | 100 |
| 2024 | 57 | 117 |
| 2025 | 44 | 81 |
| 2026 | 35 | 52 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Direct aromatic carbon-oxygen and carbon-hydrogen bond functionalization via organic photoredox catalyst8 Sep 2026US 12,729,169 B2The University of North Carolina at Chapel Hill
- Ring closure of benzoquinones containing an unsaturated side chain using a basic catalyst8 Sep 2026US 12,729,188 B2Dsm IP Assets B.V.
- Crystalline form of epigallocatechin-3-gallate1 Sep 2026US 12,723,034 B2PharmassětX Inc.
- 4′-substituted analogues of fisetin and their use in the treatment of cancer25 Aug 2026US 12,715,851 B2Jawaharlal Nehru University
- Compounds and methods for amine oxidase imaging28 Jul 2026US 12,692,532 B2ETH Zurich
- Crystalline form of epigallocatechin-3-gallate1 Oct 2026US 2026/0297048 A1PharmassětX Inc.
- Crystalline form of epigallocatechin-3-gallate1 Oct 2026US 2026/0297049 A1PharmassětX Inc.
- Crystalline form of epigallocatechin-3-gallate1 Oct 2026US 2026/0297050 A1PharmassětX Inc.
- Compositions and methods of suppressing aversiveness of pharmaceuticals and ingestible materials27 Aug 2026US 2026/0248918 A1Monell Chemical Senses Center
- Compounds for positive modulation of the autophagy-lysosomal pathway and methods of use27 Aug 2026US 2026/0250256 A1
Most cited
By later US patents
- Coumarin derivative having antitumor activity260US 7,897,792 B2Chugai Seiyaku Kabushiki Kaisha · 2011
- Disubstituted acetylenes bearing heteroaromatic and heterobicyclic groups having retinoid like activity220US 5,089,509 AAllergan, Inc. · 1992
- Gas phase polymerization process167US 5,453,471 AUnion Carbide Chemicals & Plastics Technology Corporation · 1995
- Synthesis and use of retinoid compounds having negative hormone and/or antagonist activities164US 5,877,207 AAllergan Sales, Inc. · 1999
- Sulfonated derivatives of 7-aminocoumarin163US 5,696,157 AMolecular Probes, Inc. · 1997