C07D 279/20
With hydrogen atoms directly attached to the ring nitrogen atom
Official title: with hydrogen atoms directly attached to the ring nitrogen atom
C07D279/20 (With hydrogen atoms directly attached to the ring nitrogen atom) appears on 136 US grants and 124 published applications in this corpus.
Search patents in C07D- Granted patents
- 136
- Published applications
- 124
- Assignees
- 90
- Inventors
- 342
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 1 |
| 2002 | 5 | 3 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 2 |
| 2006 | 1 | 2 |
| 2007 | 0 | 2 |
| 2008 | 1 | 1 |
| 2009 | 0 | 7 |
| 2010 | 2 | 4 |
| 2011 | 3 | 6 |
| 2012 | 3 | 3 |
| 2013 | 2 | 7 |
| 2014 | 8 | 7 |
| 2015 | 6 | 4 |
| 2016 | 10 | 11 |
| 2017 | 8 | 9 |
| 2018 | 7 | 8 |
| 2019 | 7 | 6 |
| 2020 | 5 | 8 |
| 2021 | 11 | 5 |
| 2022 | 4 | 6 |
| 2023 | 3 | 3 |
| 2024 | 5 | 8 |
| 2025 | 6 | 7 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Phenothiazine compound, its preparation and use in rubber blends and vehicle tires, as ageing protectant, antioxidant, antiozonant and colorant25 Nov 2025US 12,479,810 B2Continental Reifen Deutschland GmbH
- Tricyclic compounds with OMA1/OPA1 modulatory properties11 Nov 2025US 12,466,819 B2712 North Inc.
- Mitochondrial therapeutic agents4 Nov 2025US 12,459,910 B2Arizona Board of Regents on behalf of Arizona State University
- Phenothiazine ferroptosis inhibitor, preparation method therefor and application thereof21 Oct 2025US 12,448,376 B2Chengdu Henghao Innovative Science and Technology Co., Ltd.
- 3, 7-diamino-10H-phenothiazine salts and their use10 Jun 2025US 12,324,810 B2WisTa Laboratories Ltd.
- Mitochondrial therapeutic agents10 Sep 2026US 2026/0265209 A1Arizona Board of Regents on behalf of Arizona State University
- Substituted phenothiazines as ferroptosis inhibitors23 Apr 2026US 2026/0109678 A1Universiteit Antwerpen
- Sulfonium salt monomer, sulfonium salt quencher, polymer, chemically amplified resist composition, and patterning method19 Feb 2026US 2026/0050217 A1Shin-Etsu Chemical Co., Ltd.
- 3, 7-diamino-10h-phenothiazine salts and their use23 Oct 2025US 2025/0325557 A1WisTa Laboratories Ltd.
- Method and system for preparing diphenylamine and phenothiazine from aniline16 Oct 2025US 2025/0320176 A1China Petroleum & Chemical Corporation
Most cited
By later US patents
- Process for preparing diaminophenothiazinium compounds687US 8,765,942 B2Provence Technologies · 2014
- Phenothiazine diaminium salts and their use31US 9,283,230 B2WisTa Laboratories Ltd. · 2016
- Method for the preparation of substituted 3-(phenylimino)-3H-phenothiazines and phenoxazines25US 5,631,371 ABayer Aktiengesellschaft · 1997
- Azine redox dyes and leuco azine dyes24US 4,710,570 AMinnesota Mining and Manufacturing Company · 1987
- Phenothiazine and derivatives and analogs and use as leukotriene biosynthesis inhibitors17US 4,666,907 AMerck Frosst Canada, Inc. · 1987