C07D 271/00
Heterocyclic compounds containing five-membered rings having two nitrogen atoms and one oxygen
Official title: Heterocyclic compounds containing five-membered rings having two nitrogen atoms and one oxygen atom as the only ring hetero atoms
C07D271/00 (Heterocyclic compounds containing five-membered rings having two nitrogen atoms and one oxygen) appears on 2,240 US grants and 2,208 published applications in this corpus.
Search patents in C07D- Granted patents
- 2,240
- Published applications
- 2,208
- Assignees
- 955
- Inventors
- 6,853
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 28 | 0 |
| 1977 | 16 | 0 |
| 1978 | 25 | 0 |
| 1979 | 22 | 0 |
| 1980 | 20 | 0 |
| 1981 | 22 | 0 |
| 1982 | 21 | 0 |
| 1983 | 28 | 0 |
| 1984 | 20 | 0 |
| 1985 | 20 | 0 |
| 1986 | 12 | 0 |
| 1987 | 16 | 0 |
| 1988 | 21 | 0 |
| 1989 | 21 | 0 |
| 1990 | 24 | 0 |
| 1991 | 21 | 0 |
| 1992 | 26 | 0 |
| 1993 | 36 | 0 |
| 1994 | 29 | 0 |
| 1995 | 33 | 0 |
| 1996 | 29 | 0 |
| 1997 | 39 | 0 |
| 1998 | 32 | 0 |
| 1999 | 56 | 0 |
| 2000 | 48 | 0 |
| 2001 | 60 | 8 |
| 2002 | 48 | 61 |
| 2003 | 51 | 82 |
| 2004 | 34 | 99 |
| 2005 | 47 | 88 |
| 2006 | 51 | 84 |
| 2007 | 50 | 80 |
| 2008 | 44 | 82 |
| 2009 | 44 | 101 |
| 2010 | 64 | 107 |
| 2011 | 58 | 75 |
| 2012 | 56 | 93 |
| 2013 | 75 | 79 |
| 2014 | 91 | 124 |
| 2015 | 96 | 101 |
| 2016 | 86 | 83 |
| 2017 | 80 | 102 |
| 2018 | 76 | 108 |
| 2019 | 65 | 88 |
| 2020 | 66 | 116 |
| 2021 | 71 | 98 |
| 2022 | 59 | 75 |
| 2023 | 47 | 93 |
| 2024 | 74 | 88 |
| 2025 | 42 | 60 |
| 2026 | 40 | 33 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- NAMPT modulators29 Sep 2026US 12,747,203 B2Cytokinetics, Inc.
- Headgroup lipid compounds and compositions for intracellular delivery of therapeutic agents22 Sep 2026US 12,740,943 B2ModernaTX, Inc.
- Tautomeric ligand enables biomimetic C—H hydroxylation with molecular oxygen22 Sep 2026US 12,741,937 B2The Scripps Research Institute
- Dyes undergoing changes in color and fluorescence upon binding of organic oxo compounds18 Aug 2026US 12,710,366 B2Bundesrepublik Deutschland, vertreten durch den Bundesminister für Wirtschaft und Energie, dieser vertreten durch den Präsidenten der Bundesanstalt für Materialforschung und -prüfung, (BAM)
- Compound, cellular vesicle staining agent, and method of fluorescent staining for cellular vesicles11 Aug 2026US 12,704,443 B2National University Corporation Tokai National Higher Education and Research System
- Indene compounds, pharmaceutical compositions thereof, and their therapeutic applications1 Oct 2026US 2026/0297012 A1NucMito Pharmaceuticals Co. Ltd.
- Err modulators17 Sep 2026US 2026/0274807 A1University of Health Sciences & Pharmacy in St. Louis
- Process for the preparation of (6s,9r)-3-oxo-3,5,6,7,8,9-hexahydro-2h-6,9-epiminocyclohepta[c]pyridazine-10-carboxamide derivatives3 Sep 2026US 2026/0258043 A1Pathios Therapeutics Limited
- Oxadiazole derivative20 Aug 2026US 2026/0242345 A1Sumitomo Pharma Co., Ltd.
- A method of treating seeds and seeds produced thereby13 Aug 2026US 2026/0231848 A1Cyprus University of Technology
Most cited
By later US patents
- Spiro compounds and their use as electroluminescence materials179US 5,840,217 AHoechst Aktiengesellschaft · 1998
- Sulfonamide inhibitors of aspartyl protease147US 5,585,397 AVertex Pharmaceuticals Incorporated · 1996
- Compounds and compositions for intracellular delivery of therapeutic agents143US 9,868,691 B2ModernaTX, Inc. · 2018
- Selective androgen receptor modulators and methods of use thereof113US 6,569,896 B2The University of Tennessee Research Corporation · 2003
- Poly(perfluoroalkylene oxide) derivatives106US 4,085,137 AMinnesota Mining and Manufacturing Company · 1978