C07D 201/04
From or via oximes by beckmann rearrangement
Official title: from or via oximes by Beckmann rearrangement
C07D201/04 (From or via oximes by beckmann rearrangement) appears on 117 US grants and 69 published applications in this corpus.
Search patents in C07D- Granted patents
- 117
- Published applications
- 69
- Assignees
- 60
- Inventors
- 278
- Latest grant
- 2 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 6 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 7 | 0 |
| 2002 | 4 | 2 |
| 2003 | 3 | 2 |
| 2004 | 3 | 4 |
| 2005 | 1 | 3 |
| 2006 | 5 | 2 |
| 2007 | 2 | 4 |
| 2008 | 3 | 2 |
| 2009 | 1 | 1 |
| 2010 | 1 | 6 |
| 2011 | 1 | 7 |
| 2012 | 4 | 1 |
| 2013 | 5 | 3 |
| 2014 | 5 | 3 |
| 2015 | 2 | 3 |
| 2016 | 2 | 4 |
| 2017 | 4 | 3 |
| 2018 | 3 | 2 |
| 2019 | 3 | 4 |
| 2020 | 1 | 0 |
| 2021 | 1 | 2 |
| 2022 | 2 | 3 |
| 2023 | 0 | 3 |
| 2024 | 2 | 1 |
| 2025 | 3 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Process and plant for the production of ε-Caprolactam and ammonium sulfate on industrial scale2 Dec 2025US 12,486,225 B2Cap III B. V.
- Process for the recovery of epsilon-caprolactam from nylon 6-containing multi-component material29 Jul 2025US 12,371,407 B2Cap III B. V.
- Method for producing laurolactam, device for synthesizing same, laurolactam composition produced thereby, and method for producing polylaurolactam using same15 Jul 2025US 12,358,872 B2Hanwha Solutions Corporation
- Isomer-enriched 3-caranlactams and polyamides based thereon with high optical purity and adjustable crystallinity for high-performance applications26 Nov 2024US 12,152,107 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Laurolactam preparation method and synthesis apparatus13 Aug 2024US 12,060,326 B2Hanwha Solutions Corporation
- Hierarchical porous all-silica molecular sieve and its preparation method and application25 Jun 2026US 2026/0175205 A1China Petroleum & Chemical Corporation
- Titanium silicalite molecular sieve with hierarchical porous structure and its preparation and application18 Jun 2026US 2026/0166536 A1China Petroleum & Chemical Corporation
- Process for the recovery of epsilon-caprolactam from nylon 6-containing multi- component material27 Mar 2025US 2025/0100974 A1Cap III B. V.
- Process for producing high-purity epsilon-caprolactam27 Feb 2025US 2025/0066307 A1China Petroleum & Chemical Corporation
- Laurolactam preparation method, synthesizing device therefor, laurolactam composition prepared thereby, and polylaurolactam preparation method using same29 Feb 2024US 2024/0067609 A1Hanwha Solutions Corporation
Most cited
By later US patents
- Selective surface dealumination of zeolites using dicarboxylic acid34US 5,242,676 AMobil Oil Corporation · 1993
- Process for making epsilon-caprolactam19US 4,359,421 AMobil Oil Corporation · 1982
- Process for producing epsilon-caprolactam14US 4,717,770 ASumitomo Chemical Company, Limited · 1988
- Production of epsilon-caprolactam13US 4,709,024 ASumitomo Chemical Company, Limited · 1987
- Process for producing laurolactam from cyclododecanone12US 6,649,757 B2Ube Industries, Ltd. · 2003