C07D 239/52
Two oxygen atoms
C07D239/52 (Two oxygen atoms) appears on 1,587 US grants and 1,110 published applications in this corpus.
Search patents in C07D- Granted patents
- 1,587
- Published applications
- 1,110
- Assignees
- 684
- Inventors
- 4,242
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 8 | 0 |
| 1978 | 26 | 0 |
| 1979 | 8 | 0 |
| 1980 | 16 | 0 |
| 1981 | 15 | 0 |
| 1982 | 17 | 0 |
| 1983 | 13 | 0 |
| 1984 | 28 | 0 |
| 1985 | 31 | 0 |
| 1986 | 29 | 0 |
| 1987 | 36 | 0 |
| 1988 | 26 | 0 |
| 1989 | 29 | 0 |
| 1990 | 28 | 0 |
| 1991 | 25 | 0 |
| 1992 | 38 | 0 |
| 1993 | 32 | 0 |
| 1994 | 35 | 0 |
| 1995 | 37 | 0 |
| 1996 | 27 | 0 |
| 1997 | 42 | 0 |
| 1998 | 45 | 0 |
| 1999 | 38 | 0 |
| 2000 | 39 | 0 |
| 2001 | 55 | 6 |
| 2002 | 55 | 33 |
| 2003 | 39 | 56 |
| 2004 | 31 | 57 |
| 2005 | 29 | 57 |
| 2006 | 35 | 53 |
| 2007 | 30 | 41 |
| 2008 | 26 | 38 |
| 2009 | 29 | 44 |
| 2010 | 36 | 52 |
| 2011 | 28 | 49 |
| 2012 | 42 | 43 |
| 2013 | 52 | 51 |
| 2014 | 44 | 55 |
| 2015 | 56 | 47 |
| 2016 | 43 | 56 |
| 2017 | 40 | 40 |
| 2018 | 42 | 39 |
| 2019 | 37 | 35 |
| 2020 | 24 | 43 |
| 2021 | 18 | 46 |
| 2022 | 35 | 44 |
| 2023 | 24 | 37 |
| 2024 | 27 | 38 |
| 2025 | 19 | 29 |
| 2026 | 10 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pyrylium method of preparing pyrimidine cyclohexyl glucocorticoid receptor modulators15 Sep 2026US 12,735,390 B2Corcept Therapeutics, Inc.
- Prodrugs for sustained releasing therapeutic agents and uses thereof8 Sep 2026US 12,729,186 B2Liangjiang Medicine Co., Ltd.
- 5′-modified carbocyclic ribonucleotide derivatives and methods of use26 May 2026US 12,636,301 B2Sanegene Bio USA Inc.
- Histone deacetylase inhibitors26 May 2026US 12,637,433 B2The University of Queensland
- Preparation method of phenylisoxazoline compound21 Apr 2026US 12,606,547 B2Jiangsu Yangnong Chemical Co., Ltd.
- Process for the preparation of sulfamide derivatives17 Sep 2026US 2026/0274789 A1Adama Agan Ltd.
- Methods and compositions for prevention of anaphylaxis20 Aug 2026US 2026/0242369 A1Baylor College of Medicine
- Non-covalent dimer cation of purine/pyrimidine and amino acid, salt thereof, preparation method therefor, and use thereof13 Aug 2026US 2026/0234153 A1Suzhou Protonation Chain Biotechnology Co., Ltd
- Crystalline forms of tenofovir alafenamide6 Aug 2026US 2026/0226087 A1Gilead Sciences, Inc.
- Gpr35 modulators30 Jul 2026US 2026/0216198 A1ThirtyFiveBio Limited
Most cited
By later US patents
- Pyrimidine derivatives for labeled binding partners639US 5,502,177 AGilead Sciences, Inc. · 1996
- Pyrimidine derivatives488US 6,005,096 AGilead Sciences, Inc. · 1999
- Carbocyclic nucleosides containing bicyclic rings, oligonucleotides therefrom, process for their preparation, their use and intermediates468US 5,700,920 ANovartis AG · 1997
- Pyrimidine derivatives for labeled binding partners456US 5,763,588 AGilead Sciences, Inc. · 1998
- Carbocyclic nucleosides containing bicyclic rings, oligonucleotides therefrom, process for their preparation, their use and intermediates409US 5,610,300 ACiba-Geigy Corporation · 1997