C07C 201/16
Separation
Official title: Separation; Purification; Stabilisation; Use of additives
C07C201/16 (Separation) appears on 219 US grants and 90 published applications in this corpus.
Search patents in C07C- Granted patents
- 219
- Published applications
- 90
- Assignees
- 117
- Inventors
- 476
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 5 | 0 |
| 1978 | 4 | 0 |
| 1979 | 5 | 0 |
| 1980 | 5 | 0 |
| 1981 | 10 | 0 |
| 1982 | 3 | 0 |
| 1983 | 8 | 0 |
| 1984 | 9 | 0 |
| 1985 | 8 | 0 |
| 1986 | 7 | 0 |
| 1987 | 8 | 0 |
| 1988 | 6 | 0 |
| 1989 | 6 | 0 |
| 1990 | 5 | 0 |
| 1991 | 8 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 1 |
| 2002 | 2 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 5 |
| 2005 | 2 | 2 |
| 2006 | 3 | 0 |
| 2007 | 0 | 3 |
| 2008 | 5 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 4 |
| 2012 | 1 | 4 |
| 2013 | 3 | 9 |
| 2014 | 3 | 3 |
| 2015 | 10 | 8 |
| 2016 | 9 | 10 |
| 2017 | 7 | 7 |
| 2018 | 6 | 5 |
| 2019 | 2 | 2 |
| 2020 | 4 | 3 |
| 2021 | 5 | 3 |
| 2022 | 1 | 5 |
| 2023 | 0 | 3 |
| 2024 | 5 | 4 |
| 2025 | 2 | 4 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Separation and purification method of 2-nitroethanol2 Jun 2026US 12,643,848 B2Fudan University
- Process for the preparation of a-methyl-[4-(nitro)-2-(trifluoromethyl)-benzyl nitrate9 Sep 2025US 12,410,119 B2BASF Agro B.V.
- Method for preparing trifluoromethyl aromatic compound2 Sep 2025US 12,404,231 B2Jingdezhen Fushine Life Technology Co., Ltd.
- Process for the continuous production of nitrobenzene31 Dec 2024US 12,180,135 B2Covestro Deutschland AG
- Crystalline 2-fluoro-3-nitrotoluene and process for the preparation thereof10 Dec 2024US 12,162,815 B2Amgen Inc.
- Preparation of 2-chloro-4-fluoro-5-nitrobenzoic acid26 Mar 2026US 2026/0085051 A1Adama Agan Ltd.
- Method for Preparing Trifluoromethyl Aromatic Compound14 Aug 2025US 2025/0257028 A1Jingdezhen Fushine Life Technology Co., Ltd.
- Crystalline 2-fluoro-3-nitrotoluene and process for the preparation thereof5 Jun 2025US 2025/0179005 A1Amgen Inc.
- Improved process for the preparation of upadacitinib6 Mar 2025US 2025/0074912 A1Msn Laboratories Private Limited, R&D Center
- Process for Manufacturing Pibrentasvir Active Drug Substance13 Feb 2025US 2025/0051312 A1AbbVie Inc.
Most cited
By later US patents
- Process for separating isomers of dinitrotoluene57US 4,642,397 AUop LLC · 1987
- Process for working up the waste water obtained in the preparation of dinitrotoluene57US 6,936,741 B2Bayer MaterialScience AG · 2005
- Removal of nitrocresols from dinitrotoluene waste streams using fentons reagent29US 4,604,214 AAir Products and Chemicals, Inc. · 1986
- Process for inhibiting polymerization of styrene during distillation23US 4,033,829 AMonsanto Company · 1977
- Process for the preparation of aromatic monocarboxylic acids from toluene and substituted toluenes21US 4,603,220 ADynamit Nobel Aktiengesellschaft · 1986