C07D 309/38
One oxygen atom in position 2 or 4
Official title: one oxygen atom in position 2 or 4, e.g. pyrones
C07D309/38 (One oxygen atom in position 2 or 4) appears on 194 US grants and 136 published applications in this corpus.
Search patents in C07D- Granted patents
- 194
- Published applications
- 136
- Assignees
- 135
- Inventors
- 583
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 7 | 0 |
| 1978 | 6 | 0 |
| 1979 | 5 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 4 | 0 |
| 1994 | 6 | 0 |
| 1995 | 6 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 9 | 0 |
| 2001 | 10 | 3 |
| 2002 | 6 | 7 |
| 2003 | 3 | 15 |
| 2004 | 6 | 13 |
| 2005 | 6 | 9 |
| 2006 | 5 | 8 |
| 2007 | 5 | 6 |
| 2008 | 8 | 3 |
| 2009 | 3 | 6 |
| 2010 | 4 | 2 |
| 2011 | 1 | 10 |
| 2012 | 3 | 6 |
| 2013 | 1 | 7 |
| 2014 | 7 | 2 |
| 2015 | 4 | 9 |
| 2016 | 4 | 3 |
| 2017 | 5 | 3 |
| 2018 | 2 | 4 |
| 2019 | 2 | 2 |
| 2020 | 2 | 5 |
| 2021 | 3 | 3 |
| 2022 | 5 | 2 |
| 2023 | 2 | 1 |
| 2024 | 0 | 2 |
| 2025 | 1 | 1 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Composition for the drying of Tillandsia sp14 Apr 2026US 12,599,137 B2
- Elastomer compositions comprising an adduct between an SP2 hybridized carbon allotrope and a dicarboxylic acid derivative25 Mar 2025US 12,258,275 B2Pirelli Tyre S. P. A.
- Method for fluoroalkylation of enamines29 Aug 2023US 11,739,066 B2Arxada AG
- Antibacterial agents: O-alkyl-deuterated pyronins27 Jun 2023US 11,685,723 B2Rutgers, The State University of New Jersey
- Detergents and cleaning agents having improved performance6 Sep 2022US 11,434,452 B2Henkel AG & Co. KGaA
- Biobased polyesters and methods of making and using same24 Sep 2026US 2026/0286044 A1Solugen, Inc.
- A pharmaceutical composition targeting mutant p53 and her26 Aug 2026US 2026/0224524 A1
- Bio-renewable polymers and uses thereof18 Jun 2026US 2026/0167750 A1The Regents of the University of California
- Cannalactone analogs, synthesis and use for stimulation of germination of parasitic plant seeds1 Jan 2026US 2026/0000077 A1
- Microbial method for reproducing the human urolithin metabotypes in vitro and in vivo23 Oct 2025US 2025/0327022 A1Consejo Superior De Investigaciones Cientificas (Csic)
Most cited
By later US patents
- Substituted phenyl keto enols as pesticides and herbicides82US 6,140,358 ABayer Aktiengesellschaft · 2000
- Sulfoxide and bis-sulfoxide compounds and compositions for cholesterol management and related uses65US 6,673,780 B2Esperion Therapeutics, Inc. · 2004
- Herbicides64US 6,894,005 B1Syngenta Crop Protection AG · 2005
- Cysteine protease inhibitors containing heterocyclic leaving groups54US 5,486,623 APrototek, Inc. · 1996
- Unsaturated cyclic amido-substituted ether compounds and preparation process thereof48US 4,649,219 AMitsui Toatsu Chemicals, Inc. · 1987