C07C 227/22
From lactams, cyclic ketones or cyclic oximes
Official title: from lactams, cyclic ketones or cyclic oximes, e.g. by reactions involving Beckmann rearrangement
C07C227/22 (From lactams, cyclic ketones or cyclic oximes) appears on 131 US grants and 82 published applications in this corpus.
Search patents in C07C- Granted patents
- 131
- Published applications
- 82
- Assignees
- 60
- Inventors
- 247
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 11 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 11 | 0 |
| 1999 | 3 | 0 |
| 2000 | 7 | 0 |
| 2001 | 0 | 2 |
| 2002 | 10 | 4 |
| 2003 | 8 | 11 |
| 2004 | 6 | 6 |
| 2005 | 5 | 4 |
| 2006 | 4 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 7 |
| 2010 | 2 | 2 |
| 2011 | 5 | 4 |
| 2012 | 4 | 4 |
| 2013 | 5 | 6 |
| 2014 | 3 | 7 |
| 2015 | 8 | 5 |
| 2016 | 1 | 1 |
| 2017 | 2 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 2 |
| 2021 | 0 | 6 |
| 2022 | 2 | 1 |
| 2023 | 4 | 2 |
| 2024 | 2 | 2 |
| 2025 | 2 | 3 |
By publication year. Applications have been published since 2001.
Recent patents
- c-Abl tyrosine kinase inhibitory compound embodiments and methods of making and using the same7 Oct 2025US 12,435,047 B2Pontifica Universidad Catoclica de Chile
- Process for acid hydrolysis of pure polylaurolactam8 Jul 2025US 12,351,538 B2Evonik Operations GmbH
- Method for preparing pregabalin5 Mar 2024US 11,919,835 B2Zhejiang Huahai Pharmaceutical Co., Ltd.
- Method for synthesizing diclofenac sodium20 Feb 2024US 11,905,229 B2Fudan University
- Organic sulfonic acid salts of amino acid esters and process for their preparation10 Oct 2023US 11,780,802 B2BASF SE
- C-abl tyrosine kinase inhibitory compound embodiments and methods of making and using the same6 Nov 2025US 2025/0340521 A1Pontificia Universidad Catolica De Chile
- Amino acid surfactants14 Aug 2025US 2025/0257029 A1AdvanSix Resins & Chemicals LLC
- Separation of impurities in a process for hydrolytically depolymerizing a polyamide27 Mar 2025US 2025/0100965 A1BASF SE
- Method for synthesizing 5,8-diamino-3,4-dihydro-2h-1-naphthalenone and intermediate compound used therein17 Oct 2024US 2024/0343678 A1Jiangsu Mabwell Health Pharmaceutical R&D Co., Ltd.
- Process for acid hydrolysis of pure polylaurolactam18 Jan 2024US 2024/0018092 A1Evonik Operations GmbH
Most cited
By later US patents
- Furyl or thienyl carbonyl substituted taxanes and pharmaceutical compositions containing them106US 5,283,253 AFlorida State University · 1994
- Preparation of substituted isoserine esters using .beta.-lactams and metal or ammonium alkoxides98US 5,430,160 AFlorida State University · 1995
- Processes for preparing dianthranilate compounds and diazopyridone colorants95US 6,576,747 B1Xerox Corporation · 2003
- 10-desacetoxytaxol derivatives74US 5,350,866 ABristol-Myers Squibb Company · 1994
- Preparation of substituted isoserine esters using metal alkoxides and .beta .64US 5,466,834 AFlorida State University · 1995