C07C 205/21
Having nitro groups and hydroxy groups bound to carbon atoms of the
Official title: having nitro groups and hydroxy groups bound to carbon atoms of the same non-condensed six-membered aromatic ring
C07C205/21 (Having nitro groups and hydroxy groups bound to carbon atoms of the) appears on 86 US grants and 39 published applications in this corpus.
Search patents in C07C- Granted patents
- 86
- Published applications
- 39
- Assignees
- 54
- Inventors
- 205
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 4 |
| 2004 | 0 | 2 |
| 2005 | 1 | 2 |
| 2006 | 1 | 3 |
| 2007 | 1 | 2 |
| 2008 | 2 | 2 |
| 2009 | 1 | 2 |
| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
| 2012 | 3 | 0 |
| 2013 | 1 | 2 |
| 2014 | 1 | 0 |
| 2015 | 2 | 3 |
| 2016 | 1 | 1 |
| 2017 | 2 | 3 |
| 2018 | 4 | 2 |
| 2019 | 0 | 2 |
| 2020 | 1 | 1 |
| 2021 | 0 | 2 |
| 2022 | 0 | 2 |
| 2023 | 1 | 1 |
| 2024 | 3 | 1 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Method for producing 1,1,1-trifluoro-2,2-bisarylethane, and 1,1,1-trifluoro-2,2-bisarylethane7 Oct 2025US 12,435,185 B2Central Glass Company, Limited
- Polyamide acid, polyimide, optical film, display device and production methods thereof8 Jul 2025US 12,351,685 B2Central Glass Company, Limited
- Compound for treatment of bacterial infections of different etiology in humans16 Jul 2024US 12,037,302 B1Tesla Bioscience Ad Banja Luka
- Organophosphorus degrading enzyme based multifunctional catalyst and preparation method and use thereof30 Apr 2024US 11,969,717 B2Hebei University of Technology
- Aryl ethers and uses thereof30 Apr 2024US RE49,948 E1Peloton Therapeutics, Inc.
- Electrolyte Additive and a Preparation Method Therefor, an Electrolyte and a Lithium Ion Battery7 Nov 2024US 2024/0368070 A1Jiangsu Zenergy Battery Technologies Co., Ltd.
- Preparation method for water-soluble magnolol derivatives and honokiol derivatives and intermediates thereof, and related monohydroxy protection intermediates26 Oct 2023US 2023/0339840 A1Beijing Honghui Meditech Co., Ltd
- Polyamide Acid, Polyimide, Optical Film, Display Device and Production Methods Thereof21 Apr 2022US 2022/0119595 A1Central Glass Company, Limited
- Method for Producing 1,1,1-Trifluoro-2,2-Bisarylethane, and 1,1,1-Trifluoro-2,2-Bisarylethane7 Apr 2022US 2022/0106444 A1Central Glass Company, Limited
- Organophosphorus degrading enzyme based multifunctional catalyst and preparation method and use thereof11 Nov 2021US 2021/0346876 A1Hebei University of Technology
Most cited
By later US patents
- Pharmacologically active compounds, methods for the preparation thereof and compositions containing the same100US 4,963,590 AOrion-yhtyma Oy · 1990
- Method of synthesizing camptothecin-relating compounds60US 7,126,000 B2Kabushiki Kaisha Yakult Honsha · 2006
- Trisubstituted phenyl analogs having activity for congestive heart failure59US 5,274,002 AWarner-Lambert Company · 1993
- Amino phenols useful as additives for fuels and lubricants53US 4,320,021 AThe Lubrizol Corporation · 1982
- Pharmacologically active catechol derivatives49US 5,446,194 AOrion-yhtyma Oy · 1995