C07F 9/645
Having two nitrogen atoms as the only ring hetero atoms
Official title: having two nitrogen atoms as the only ring hetero atoms
C07F9/645 (Having two nitrogen atoms as the only ring hetero atoms) appears on 1,419 US grants and 1,034 published applications in this corpus.
Search patents in C07F- Granted patents
- 1,419
- Published applications
- 1,034
- Assignees
- 656
- Inventors
- 3,416
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 26 | 0 |
| 1977 | 27 | 0 |
| 1978 | 29 | 0 |
| 1979 | 30 | 0 |
| 1980 | 22 | 0 |
| 1981 | 21 | 0 |
| 1982 | 14 | 0 |
| 1983 | 14 | 0 |
| 1984 | 31 | 0 |
| 1985 | 31 | 0 |
| 1986 | 18 | 0 |
| 1987 | 28 | 0 |
| 1988 | 26 | 0 |
| 1989 | 23 | 0 |
| 1990 | 23 | 0 |
| 1991 | 26 | 0 |
| 1992 | 25 | 0 |
| 1993 | 34 | 0 |
| 1994 | 31 | 0 |
| 1995 | 35 | 0 |
| 1996 | 16 | 0 |
| 1997 | 37 | 0 |
| 1998 | 34 | 0 |
| 1999 | 25 | 0 |
| 2000 | 26 | 0 |
| 2001 | 18 | 7 |
| 2002 | 23 | 18 |
| 2003 | 19 | 25 |
| 2004 | 13 | 45 |
| 2005 | 14 | 50 |
| 2006 | 15 | 38 |
| 2007 | 27 | 54 |
| 2008 | 30 | 43 |
| 2009 | 33 | 44 |
| 2010 | 33 | 34 |
| 2011 | 31 | 30 |
| 2012 | 36 | 43 |
| 2013 | 27 | 43 |
| 2014 | 41 | 54 |
| 2015 | 59 | 56 |
| 2016 | 49 | 52 |
| 2017 | 46 | 66 |
| 2018 | 48 | 50 |
| 2019 | 42 | 44 |
| 2020 | 29 | 39 |
| 2021 | 31 | 38 |
| 2022 | 16 | 37 |
| 2023 | 25 | 39 |
| 2024 | 26 | 37 |
| 2025 | 24 | 30 |
| 2026 | 12 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Prodrugs for sustained releasing therapeutic agents and uses thereof8 Sep 2026US 12,729,186 B2Liangjiang Medicine Co., Ltd.
- Immunomodulator8 Sep 2026US 12,729,195 B2Hitgen Inc.
- Bicyclic fused ring derivative or salt thereof and pharmaceutical composition comprising same21 Jul 2026US 12,686,665 B2Yuhan Corporation
- Inhibitors of the enzyme enolase for precision oncology14 Jul 2026US 12,679,855 B2Board of Regents, The University of Texas System
- 5′-modified carbocyclic ribonucleotide derivatives and methods of use26 May 2026US 12,636,301 B2Sanegene Bio USA Inc.
- Treatment and diagnosis of melanoma17 Sep 2026US 2026/0272867 A1The Rockefeller University
- Inhibitors of myc and uses thereof17 Sep 2026US 2026/0274827 A1Northwestern University
- Quinazoline derivatives as ectonucleotide pyrophosphatase phosphodiesterase 1 inhibitors27 Aug 2026US 2026/0250304 A1Riboscience LLC
- Phosphine oxide-based photoinitiators23 Jul 2026US 2026/0209256 A1Arkema France
- Plant cell wall-dissolving agent18 Jun 2026US 2026/0167654 A1Kanazawa University
Most cited
By later US patents
- Carbocyclic nucleosides containing bicyclic rings, oligonucleotides therefrom, process for their preparation, their use and intermediates468US 5,700,920 ANovartis AG · 1997
- Carbocyclic nucleosides containing bicyclic rings, oligonucleotides therefrom, process for their preparation, their use and intermediates409US 5,610,300 ACiba-Geigy Corporation · 1997
- Electrochromic device368US 6,870,657 B1University College Dublin · 2005
- Alkynylamino-nucleotides340US 5,047,519 AE. I. Du Pont de Nemours and Company · 1991
- Alkynylamino-nucleotides225US 5,151,507 AE. I. Du Pont de Nemours and Company · 1992