C07C 227/20
By hydrolysis of n-acylated amino-acids or derivatives thereof
Official title: by hydrolysis of N-acylated amino-acids or derivatives thereof, e.g. hydrolysis of carbamates
C07C227/20 (By hydrolysis of n-acylated amino-acids or derivatives thereof) appears on 82 US grants and 90 published applications in this corpus.
Search patents in C07C- Granted patents
- 82
- Published applications
- 90
- Assignees
- 66
- Inventors
- 284
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 3 |
| 2003 | 1 | 1 |
| 2004 | 1 | 3 |
| 2005 | 2 | 2 |
| 2006 | 5 | 6 |
| 2007 | 1 | 3 |
| 2008 | 4 | 3 |
| 2009 | 2 | 5 |
| 2010 | 2 | 3 |
| 2011 | 3 | 2 |
| 2012 | 3 | 5 |
| 2013 | 2 | 6 |
| 2014 | 4 | 2 |
| 2015 | 4 | 4 |
| 2016 | 4 | 8 |
| 2017 | 4 | 3 |
| 2018 | 8 | 4 |
| 2019 | 2 | 3 |
| 2020 | 2 | 1 |
| 2021 | 2 | 4 |
| 2022 | 3 | 9 |
| 2023 | 3 | 3 |
| 2024 | 2 | 3 |
| 2025 | 4 | 1 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Zwitterionic crosslinkers, hydrogels comprising zwitterionic crosslinkers, and methods for making and using21 Jul 2026US 12,686,758 B2University of Idaho
- Methods of synthesizing 4-valyloxybutyric acid28 Apr 2026US 12,612,357 B2Xwpharma Ltd.
- Process for acid hydrolysis of pure polylaurolactam8 Jul 2025US 12,351,538 B2Evonik Operations GmbH
- Process for the synthesis of (s) 3-amino-4-(difluoromethylenyl)cyclopent-1-ene-1-carboxylic acid17 Jun 2025US 12,331,006 B2Northwestern University
- Process for synthesis of picolinamides22 Apr 2025US 12,281,076 B2Corteva Agriscience LLC
- Methods of synthesizing 4-valyloxybutyric acid23 Jul 2026US 2026/0209170 A1Xwpharma Ltd.
- Process for the synthesis of (s) 3-amino-4-(difluoromethylenyl)cyclopent-1-ene-1-carboxylic acid30 Apr 2026US 2026/0116842 A1Northwestern University
- Method for preparing 2-hydroxyethyl aminocaproate compound and use thereof2 Apr 2026US 2026/0092031 A1Jiangsu Hengrui Pharmaceuticals Co., Ltd.
- Enantioselective methods for preparing chiral amine intermediates3 Jul 2025US 2025/0215465 A1
- Methods of synthesizing 4-valyloxybutyric acid24 Oct 2024US 2024/0351975 A1Xwpharma Ltd.
Most cited
By later US patents
- Preparation of omega-aminoalkanoic acids46US 3,933,873 ATexaco Inc. · 1976
- Method for synthesis, separation and screening of a plurality of compounds in the same bulk of a stationary phase16US 6,858,434 B1Sinvent AS · 2005
- Convenient process of manufacture for difluoromethylornithine and related compounds16US 6,998,502 B1Sabinsa Corporation · 2006
- Process for preparing 5-biphenyl-4-amino-2-methyl pentanoic acid11US 8,115,016 B2Novartis AG · 2012
- Photogenerated reagents8US 6,965,040 B12005