C07F 9/6524
Having four or more nitrogen atoms as the only ring hetero atoms
Official title: having four or more nitrogen atoms as the only ring hetero atoms
C07F9/6524 (Having four or more nitrogen atoms as the only ring hetero atoms) appears on 148 US grants and 117 published applications in this corpus.
Search patents in C07F- Granted patents
- 148
- Published applications
- 117
- Assignees
- 92
- Inventors
- 422
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 7 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 7 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 11 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 4 | 3 |
| 2003 | 4 | 4 |
| 2004 | 2 | 7 |
| 2005 | 4 | 4 |
| 2006 | 4 | 5 |
| 2007 | 2 | 3 |
| 2008 | 2 | 4 |
| 2009 | 5 | 5 |
| 2010 | 1 | 2 |
| 2011 | 3 | 1 |
| 2012 | 3 | 5 |
| 2013 | 5 | 3 |
| 2014 | 1 | 5 |
| 2015 | 1 | 3 |
| 2016 | 3 | 4 |
| 2017 | 2 | 5 |
| 2018 | 2 | 7 |
| 2019 | 7 | 8 |
| 2020 | 4 | 7 |
| 2021 | 3 | 2 |
| 2022 | 4 | 9 |
| 2023 | 1 | 3 |
| 2024 | 1 | 9 |
| 2025 | 7 | 7 |
| 2026 | 5 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pyrazolyl quinoxaline kinase inhibitors22 Sep 2026US 12,741,956 B2Astex Therapeutics Limited
- Compound18 Aug 2026US 12,709,627 B2Sumitomo Chemical Company, Limited
- Compounds and compositions for eye treatments7 Jul 2026US 12,673,925 B2Avedro, Inc.
- Long-lived gadolinium based tumor targeted imaging and therapy agents3 Mar 2026US 12,564,635 B2Wisconsin Alumni Research Foundation
- Application of click chemistry for signal amplification in IHC and ISH assays6 Jan 2026US 12,517,132 B2Ventana Medical Systems, Inc.
- Long-Lived Gadolinium Based Tumor Targeted Imaging and Therapy Agents8 Oct 2026US 2026/0306634 A1Wisconsin Alumni Research Foundation
- Wild type kit inhibitors19 Feb 2026US 2026/0049080 A1Blueprint Medicines Corporation
- Compounds and compositions for eye treatments11 Dec 2025US 2025/0376450 A1Avedro, Inc.
- Dendrimer-delivered alpha-particle radiotherapy for treatment of glioblastoma and other cancers in the brain6 Nov 2025US 2025/0340701 A1The Johns Hopkins University
- Phosphonate products and methods11 Sep 2025US 2025/0282802 A1The Board of Trustees of the University of Illinois
Most cited
By later US patents
- Gadolinium chelates as NMR contrast agents112US 4,639,365 ABoard of Regents, The University of Texas System · 1987
- Multimeric dual-modality breast cancer diagnostic agents62US 9,873,711 B22018
- Macrocyclic polyaza dichelates linked through ring nitrogens via an amide or ester functionality52US 5,650,133 ANycomed Salutar, Inc. · 1997
- Compounds with chelation affinity and selectivity for first transition series elements: use in medical therapy49US 5,874,573 AConcat, Ltd. · 1999
- Processing solution for light-sensitive silver halide photographic material comprises metal complexes of large polyamine derivatives37US 4,702,998 AKonishiroku Photo Industry Co., Ltd. · 1987