C07D 311/28
With aromatic rings attached in position 2 only
Official title: with aromatic rings attached in position 2 only
C07D311/28 (With aromatic rings attached in position 2 only) appears on 445 US grants and 503 published applications in this corpus.
Search patents in C07D- Granted patents
- 445
- Published applications
- 503
- Assignees
- 389
- Inventors
- 1,672
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 5 | 0 |
| 1980 | 7 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 7 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 6 | 0 |
| 1989 | 6 | 0 |
| 1990 | 6 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 4 | 0 |
| 1998 | 10 | 0 |
| 1999 | 10 | 0 |
| 2000 | 9 | 0 |
| 2001 | 12 | 4 |
| 2002 | 11 | 22 |
| 2003 | 14 | 17 |
| 2004 | 12 | 24 |
| 2005 | 10 | 16 |
| 2006 | 12 | 19 |
| 2007 | 5 | 12 |
| 2008 | 7 | 18 |
| 2009 | 11 | 23 |
| 2010 | 10 | 19 |
| 2011 | 11 | 17 |
| 2012 | 16 | 16 |
| 2013 | 11 | 18 |
| 2014 | 11 | 16 |
| 2015 | 14 | 33 |
| 2016 | 8 | 32 |
| 2017 | 27 | 24 |
| 2018 | 16 | 16 |
| 2019 | 20 | 19 |
| 2020 | 20 | 22 |
| 2021 | 11 | 21 |
| 2022 | 11 | 22 |
| 2023 | 16 | 22 |
| 2024 | 10 | 24 |
| 2025 | 5 | 17 |
| 2026 | 6 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 4′-substituted analogues of fisetin and their use in the treatment of cancer25 Aug 2026US 12,715,851 B2Jawaharlal Nehru University
- Preparation method for cannflavin compounds7 Jul 2026US 12,673,929 B2Deyi Pharmaceutical Ltd.
- Method for producing benzopyranone compound and novel intermediate used therein19 May 2026US 12,630,503 B2ILAb
- Compounds for the treatment of neurodegenerative and metabolic disorders31 Mar 2026US 12,590,094 B2University of Florida Research Foundation, Inc.
- Processes for the preparation of multicomponent crystalline forms of active pharmaceutical ingredients using solvent vapour24 Mar 2026US 12,583,860 B2Apotex Inc.
- Compositions and methods of suppressing aversiveness of pharmaceuticals and ingestible materials27 Aug 2026US 2026/0248918 A1Monell Chemical Senses Center
- Polymorph of 7,8-dihydroxyflavone, and preparation method therefor27 Aug 2026US 2026/0250260 A1Quanzhou Haichuang Pharmaceutical Technology Co., Ltd.
- Flavanone compounds and their use as flavor modifiers20 Aug 2026US 2026/0240208 A1Firmenich SA
- Flavones, quinolinones, quinazolinones, and aurones, and uses in ck2-mediated diseases16 Jul 2026US 2026/0199350 A1The Salk Institute for Biological Studies
- Fibroblast modulators in stroma-rich tumors9 Jul 2026US 2026/0191817 A1
Most cited
By later US patents
- Compounds and compositions for delivering active agents116US 5,773,647 AEmisphere Technologies, Inc. · 1998
- 2-(2-Amino-3-methoxyphenyl)-4-oxo-4H-[1]benzopyran for treating proliferative disorders89US 5,525,625 AWarner-Lambert Company · 1996
- Compounds and compositions for delivering active agents71US 5,879,681 AEmisphere Technolgies Inc. · 1999
- Compounds and compositions for delivering active agents70US 5,776,888 AEmisphere Technologies, Inc. · 1998
- Compounds and compositions for delivering active agents68US 6,090,958 AEmisphere Technologies, Inc. · 2000