C07C 269/08
Separation
Official title: Separation; Purification; Stabilisation; Use of additives
C07C269/08 (Separation) appears on 79 US grants and 82 published applications in this corpus.
Search patents in C07C- Granted patents
- 79
- Published applications
- 82
- Assignees
- 69
- Inventors
- 259
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 3 |
| 2003 | 0 | 0 |
| 2004 | 3 | 5 |
| 2005 | 2 | 2 |
| 2006 | 3 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 4 |
| 2011 | 0 | 1 |
| 2012 | 2 | 3 |
| 2013 | 1 | 6 |
| 2014 | 4 | 4 |
| 2015 | 5 | 2 |
| 2016 | 4 | 4 |
| 2017 | 7 | 5 |
| 2018 | 3 | 3 |
| 2019 | 3 | 5 |
| 2020 | 3 | 4 |
| 2021 | 3 | 4 |
| 2022 | 4 | 5 |
| 2023 | 4 | 8 |
| 2024 | 5 | 4 |
| 2025 | 3 | 5 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for preparing {6-[(diethylamino) methyl]naphthalen-2-yl}methyl [4-(hydroxycarbamoyl)phenyl] carbamate having high purity21 Apr 2026US 12,606,519 B2Italfarmaco S.p.A.
- Process for the purification of (R)-2-amino-3-phenylpropyl carbamate16 Dec 2025US 12,497,353 B2Flamma S.P.A.
- Compositions comprising (R)-2-amino-3-phenylpropyl carbamate and uses thereof12 Aug 2025US 12,384,743 B2Axsome Malta Ltd.
- Amphetamine carbamate compounds and methods22 Jul 2025US 12,365,648 B2Noven Pharmaceuticals, Inc.
- Process for preparing {6-[(diethylamino)methyl]naphthalen-2-yl}methyl [4-(hydroxycarbamoyl)phenyl]carbamate having high purity29 Oct 2024US 12,129,224 B2Italfarmaco S.p.A.
- Method for cleaving urethanes6 Aug 2026US 2026/0226250 A1Covestro Deutschland AG
- Process for preparing {6-[(diethylamino)methyl]naphthalen-2-yl}methyl [4-(hydroxycarbamoyl)phenyl]carbamate having high purity23 Jul 2026US 2026/0209173 A1Italfarmaco S.p.A.
- Method for resolving phenylalanine derivative, and intermediate14 May 2026US 2026/0132101 A1Neuboron Bio-Scitech Co., Ltd.
- Method for producing salt of amino acid or salt of peptide compound or solvate of either one of said salts comprising lithium salt precipitation step4 Dec 2025US 2025/0368680 A1Chugai Seiyaku Kabushiki Kaisha
- Compositions comprising (r)-2-amino-3-phenylpropyl carbamate and uses thereof6 Nov 2025US 2025/0340509 A1Axsome Malta Ltd.
Most cited
By later US patents
- Locking nut, bolt and clip systems and assemblies63US 6,010,289 APermanent Technologies, Inc. · 2000
- Solvate form of (R)-2-amino-3-phenylpropyl carbamate39US 10,829,443 B2Jazz Pharmaceuticals Ireland Limited · 2020
- Locking nut, bolt and clip systems and assemblies20US 6,679,663 B2Permanent Technologies, Inc. · 2004
- Disubstituted amino acids and methods of preparation and use thereof18US 9,845,287 B2Aileron Therapeutics, Inc. · 2017
- Preparation of urethane prepolymers having low levels of residual toluene diisocyanate16US 5,202,001 AAir Products and Chemicals, Inc. · 1993