C07D 473/18
One oxygen and one nitrogen atom
Official title: one oxygen and one nitrogen atom, e.g. guanine
C07D473/18 (One oxygen and one nitrogen atom) appears on 423 US grants and 495 published applications in this corpus.
Search patents in C07D- Granted patents
- 423
- Published applications
- 495
- Assignees
- 338
- Inventors
- 1,304
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 7 | 0 |
| 1997 | 11 | 0 |
| 1998 | 7 | 0 |
| 1999 | 11 | 0 |
| 2000 | 17 | 0 |
| 2001 | 20 | 0 |
| 2002 | 11 | 10 |
| 2003 | 12 | 13 |
| 2004 | 5 | 17 |
| 2005 | 8 | 18 |
| 2006 | 4 | 14 |
| 2007 | 5 | 13 |
| 2008 | 6 | 12 |
| 2009 | 9 | 27 |
| 2010 | 11 | 26 |
| 2011 | 17 | 36 |
| 2012 | 10 | 24 |
| 2013 | 12 | 21 |
| 2014 | 26 | 29 |
| 2015 | 20 | 28 |
| 2016 | 20 | 17 |
| 2017 | 16 | 14 |
| 2018 | 22 | 25 |
| 2019 | 24 | 33 |
| 2020 | 20 | 29 |
| 2021 | 27 | 19 |
| 2022 | 9 | 16 |
| 2023 | 5 | 16 |
| 2024 | 8 | 12 |
| 2025 | 13 | 16 |
| 2026 | 7 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- PIKfyve kinase inhibitors22 Sep 2026US 12,741,960 B2Acurastem Incorporated
- Biomimetic G-quartet compounds16 Jun 2026US 12,655,158 B2Centre National De La Recherche Scientifique
- Method of treating microbial infections2 Jun 2026US 12,642,804 B2The Regents of the University of California
- Anti-fibrotic compounds and use thereof19 May 2026US 12,630,501 B2Hadasit Medical Research Services and Development Ltd.
- Fluorescent probe and protein labeling method28 Apr 2026US 12,613,246 B2Fluorescence Diagnosis (Shanghai) Biotech Company
- Small molecule for treatment of cancer of the appendix3 Sep 2026US 2026/0258054 A1Board of Regents, The University of Texas System
- Degrader compounds of qsox1 mrna27 Aug 2026US 2026/0250738 A9University of Florida Research Foundation, Inc.
- Purine derivatives as drugs for the treatment of neonatal hypoxia-ischemia brain injury and related diseases20 Aug 2026US 2026/0240857 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- 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
- Lipid compound and composition for delivery of active substance2 Jul 2026US 2026/0184669 A1Korea Research Institute of Bioscience and Biotechnology
Most cited
By later US patents
- Boronated nucleoside, nucleotide and oligonucleotide compounds, compositions and methods for using same547US 5,130,302 ABoron Bilogicals, Inc. · 1992
- Acyclic nucleoside analogs and oligonucleotide sequences containing them413US 5,576,427 ASterling Winthrop Inc. · 1996
- Heterocyclic compounds176US 6,329,381 B1Japan Energy Corporation · 2001
- Nucleic acid-binding oligomers possessing N-branching for therapy and diagnostics136US 5,623,049 ABayer Aktiengesellschaft · 1997
- Antiretroviral enantiomeric nucleotide analogs124US 6,057,305 AInstitute of Organic Chemistry and Biochemistry of the Academy of Sciences of the Czech Republic · 2000