C07C 209/86
Separation
C07C209/86 (Separation) appears on 221 US grants and 206 published applications in this corpus.
Search patents in C07C- Granted patents
- 221
- Published applications
- 206
- Assignees
- 158
- Inventors
- 763
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 9 | 0 |
| 1998 | 7 | 0 |
| 1999 | 10 | 0 |
| 2000 | 3 | 0 |
| 2001 | 10 | 0 |
| 2002 | 3 | 2 |
| 2003 | 4 | 5 |
| 2004 | 3 | 2 |
| 2005 | 2 | 9 |
| 2006 | 6 | 5 |
| 2007 | 5 | 7 |
| 2008 | 3 | 3 |
| 2009 | 2 | 5 |
| 2010 | 1 | 7 |
| 2011 | 4 | 8 |
| 2012 | 5 | 7 |
| 2013 | 9 | 13 |
| 2014 | 8 | 11 |
| 2015 | 14 | 7 |
| 2016 | 7 | 12 |
| 2017 | 5 | 6 |
| 2018 | 7 | 18 |
| 2019 | 14 | 10 |
| 2020 | 11 | 11 |
| 2021 | 7 | 5 |
| 2022 | 6 | 7 |
| 2023 | 5 | 11 |
| 2024 | 5 | 13 |
| 2025 | 9 | 10 |
| 2026 | 3 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for recovering raw and auxiliary materials in the production of lithium bis(fluorosulfonyl)imide9 Jun 2026US 12,649,659 B2Catl-Sicong Novel Materials Co., Ltd
- Method for reactivating a precious metal iron catalyst and performing a chemical reaction14 Apr 2026US 12,600,695 B2Dow Global Technologies LLC
- Solvent drying solution and processes therfor17 Mar 2026US 12,577,185 B2Aquafortus Technologies Limited
- Distillation unit and method for separating a liquid substance mixture into two to six liquid product flows with different compositions30 Dec 2025US 12,508,519 B2Covestro Deutschland AG
- Device and method for converting and separating at least one reactant and a reaction product thereof2 Dec 2025US 12,485,400 B2Vito NV
- Method for manufacture of ethyleneamines3 Sep 2026US 2026/0257985 A1BASF SE
- Method for producing diamine and dicarboxylic acid, method for recycling polyamide, and polyamide6 Aug 2026US 2026/0225993 A1Asahi Kasei Kabushiki Kaisha
- Conversion of lysine phosphate to 1.5 pentanediamine and separation of diamines from amino and carboxylic acids18 Jun 2026US 2026/0167997 A1Archer Daniels Midland Company
- Device and method for continuous recycling of organic base11 Jun 2026US 2026/0159473 A1Fudan University
- Low-carbon and environment-friendly method for synthesizing primary amine from using halogenated hydrocarbon4 Jun 2026US 2026/0152463 A1Taizhou Chuangyuan Industrial Technology Co., Ltd
Most cited
By later US patents
- Compositions containing and methods of using 1-aminoindan and derivatives thereof and process for preparing optically active 1-aminoindan derivatives68US 5,877,218 ATeva Pharmaceutical Industries Ltd. · 1999
- Method for dehydration and concentration of aqueous solution containing organic compound64US 4,978,430 AUbe Industries, Ltd. · 1990
- Enantiomeric resolution32US 5,442,117 AAlbemarle Corporation · 1995
- Compositions containing and methods of using 1-aminoindan and derivatives thereof and process for preparing optically active 1-aminoindan derivatives32US 5,914,349 ATeva Pharmaceutical Industries Ltd. · 1999
- Compositions containing and methods of using 1-aminoindan and derivatives thereof and process for preparing optically active 1-aminoindan derivatives31US 5,877,221 ATechnion Research & Development Foundation Limited · 1999