C07C 245/02
Azo compounds, i.e. compounds having the free valencies of —n=n— groups attached
Official title: Azo compounds, i.e. compounds having the free valencies of —N=N— groups attached to different atoms, e.g. diazohydroxides
C07C245/02 (Azo compounds, i.e. compounds having the free valencies of —n=n— groups attached) appears on 337 US grants and 244 published applications in this corpus.
Search patents in C07C- Granted patents
- 337
- Published applications
- 244
- Assignees
- 233
- Inventors
- 827
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 9 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 7 | 0 |
| 1994 | 7 | 0 |
| 1995 | 9 | 0 |
| 1996 | 6 | 0 |
| 1997 | 7 | 0 |
| 1998 | 13 | 0 |
| 1999 | 11 | 0 |
| 2000 | 10 | 0 |
| 2001 | 5 | 1 |
| 2002 | 11 | 11 |
| 2003 | 11 | 12 |
| 2004 | 10 | 13 |
| 2005 | 3 | 11 |
| 2006 | 7 | 9 |
| 2007 | 6 | 8 |
| 2008 | 6 | 7 |
| 2009 | 4 | 11 |
| 2010 | 9 | 9 |
| 2011 | 6 | 11 |
| 2012 | 6 | 8 |
| 2013 | 8 | 15 |
| 2014 | 10 | 10 |
| 2015 | 13 | 10 |
| 2016 | 8 | 14 |
| 2017 | 19 | 14 |
| 2018 | 9 | 5 |
| 2019 | 6 | 11 |
| 2020 | 7 | 9 |
| 2021 | 8 | 13 |
| 2022 | 6 | 12 |
| 2023 | 6 | 5 |
| 2024 | 14 | 2 |
| 2025 | 9 | 8 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Antimicrobial AZO compounds and uses thereof23 Jun 2026US 12,661,308 B2The Regents of the University of Colorado, a body corporate
- Device for producing azo compound16 Jun 2026US 12,655,528 B2Dongjin Innochem Co., Ltd.
- Photochromic liquid crystal electrospun coaxial polymer fibers7 Apr 2026US 12,595,595 B2The Government of the United States of America, as represented by the Secretary of the Navy
- Solid-solid phase change aromatic azo compounds, method of manufacture, and use for thermal energy storage and release6 Jan 2026US 12,516,018 B2Brandeis University
- Quantum dot ligand and method for preparing the same, light emitting device and method for preparing the same, and display device9 Dec 2025US 12,492,335 B2Beijing BOE Technology Development Co., Ltd.
- Disperse dyes for dyeing polyester fibres8 Oct 2026US 2026/0308841 A1University of Leeds
- Photoswitchable compounds and affinity ligands, and their use for the optical control of affinity matrices10 Sep 2026US 2026/0265179 A1AFC Innovations GmbH
- Tunable and long-lived light reflection from liquid crystals using hydrazone dopants23 Jul 2026US 2026/0209172 A1Trustees of Dartmouth College
- Biomedical applications of azobenzene-based lipidoids16 Jul 2026US 2026/0199240 A1Trustees of Tufts College
- Diffractive optical element, method for manufacturing same, hologram using same, vr/ar device using same, and hud using same2 Jul 2026US 2026/0186181 A1Korea University Research and Business Foundation
Most cited
By later US patents
- Synthesis and use of retinoid compounds having negative hormone and/or antagonist activities164US 5,877,207 AAllergan Sales, Inc. · 1999
- Method of identifying negative hormone and/or antagonist activities151US 5,776,699 AAllergan, Inc. · 1998
- Amyloid binding nitrogen-linked compounds for the antemortem diagnosis of alzheimer's disease, in vivo imaging and prevention of amyloid deposits87US 6,417,178 B1University of Pittsburgh · 2002
- 2-Hydroxy-5-phenylazobenzoic acid derivatives and method of treating ulcerative colitis therewith84US 4,412,992 ABiorex Laboratories Limited · 1983
- Colorant compounds84US 7,381,831 B1Xerox Corporation · 2008