C07D 309/40
Oxygen atoms attached in positions 3 and 4
Official title: Oxygen atoms attached in positions 3 and 4, e.g. maltol
C07D309/40 (Oxygen atoms attached in positions 3 and 4) appears on 173 US grants and 128 published applications in this corpus.
Search patents in C07D- Granted patents
- 173
- Published applications
- 128
- Assignees
- 99
- Inventors
- 344
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 4 | 0 |
| 1979 | 6 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 6 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 7 | 5 |
| 2003 | 3 | 5 |
| 2004 | 2 | 7 |
| 2005 | 2 | 7 |
| 2006 | 5 | 4 |
| 2007 | 2 | 3 |
| 2008 | 3 | 2 |
| 2009 | 1 | 5 |
| 2010 | 4 | 7 |
| 2011 | 3 | 4 |
| 2012 | 3 | 9 |
| 2013 | 4 | 4 |
| 2014 | 6 | 8 |
| 2015 | 9 | 15 |
| 2016 | 7 | 3 |
| 2017 | 9 | 6 |
| 2018 | 4 | 10 |
| 2019 | 6 | 4 |
| 2020 | 2 | 6 |
| 2021 | 5 | 2 |
| 2022 | 4 | 2 |
| 2023 | 1 | 6 |
| 2024 | 1 | 2 |
| 2025 | 0 | 2 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Tetrahydrococannabinolic acid cocrystals11 Aug 2026US 12,702,675 B2Manoira Corporation
- Stereoselective process for preparing substituted polycyclic pyridone28 Apr 2026US 12,612,415 B2Shionogi & Co., Ltd.
- Co-crystals or salts of psilocin and methods of treatment therewith24 Feb 2026US 12,559,458 B2Reset Pharmaceuticals, Inc.
- Co-crystals or salts of psilocybin and methods of treatment therewith13 Aug 2024US 12,060,328 B2Reset Pharmaceuticals, Inc.
- P62-ZZ chemical inhibitor29 Aug 2023US 11,739,053 B2ID4Pharma, LLC
- Novel ras inhibitors11 Dec 2025US 2025/0375468 A1
- An improved process for the preparation of ferric maltol8 May 2025US 2025/0145580 A1Apicore Pharmaceuticals Private Limited
- Co-crystal or salt21 Nov 2024US 2024/0383849 A1Reset Pharmaceuticals, Inc.
- Process for the preparation of a cyp11a1 inhibitor and intermediates thereof30 May 2024US 2024/0174654 A1Orion Corporation
- P62-zz chemical inhibitor21 Dec 2023US 2023/0406813 A1ID4Pharma, LLC
Most cited
By later US patents
- Neprilysin inhibitors65US 8,481,044 B2Theravance, Inc. · 2013
- Cosmetic composition containing kojic acid ester59US 4,369,174 ASansho Pharmaceutical Co., Ltd. · 1983
- Ketone compounds and compositions for cholesterol management and related uses56US 6,699,910 B2Esperion Therapeutics, Inc. · 2004
- Compounds47US 5,153,210 ABeecham Group Limited · 1992
- Pyrimidine compounds as antagonists of SRS-A39US 4,908,368 A1990