C07D 201/08
From carboxylic acids or derivatives thereof
Official title: from carboxylic acids or derivatives thereof, e.g. hydroxy carboxylic acids, lactones or nitriles
C07D201/08 (From carboxylic acids or derivatives thereof) appears on 147 US grants and 71 published applications in this corpus.
Search patents in C07D- Granted patents
- 147
- Published applications
- 71
- Assignees
- 63
- Inventors
- 248
- Latest grant
- 12 Sep 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 8 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 7 | 0 |
| 1999 | 10 | 0 |
| 2000 | 7 | 0 |
| 2001 | 10 | 0 |
| 2002 | 8 | 5 |
| 2003 | 8 | 13 |
| 2004 | 11 | 11 |
| 2005 | 4 | 1 |
| 2006 | 5 | 3 |
| 2007 | 3 | 1 |
| 2008 | 2 | 1 |
| 2009 | 2 | 2 |
| 2010 | 0 | 2 |
| 2011 | 2 | 3 |
| 2012 | 2 | 2 |
| 2013 | 1 | 5 |
| 2014 | 3 | 3 |
| 2015 | 5 | 0 |
| 2016 | 1 | 3 |
| 2017 | 3 | 3 |
| 2018 | 0 | 4 |
| 2019 | 3 | 2 |
| 2020 | 2 | 3 |
| 2021 | 1 | 2 |
| 2022 | 0 | 2 |
| 2023 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Process for the production of epsilon caprolactam from 6-aminocaproic acid12 Sep 2023US 11,753,372 B2Aquafil S.P.A.
- Oxidation catalysts7 Mar 2023US 11,596,927 B2Archer Daniels Midland Company
- Method for producing ϵ-caprolactam19 Oct 2021US 11,149,001 B2Toray Industries, Inc.
- Oxidation catalysts20 Oct 2020US 10,807,074 B2Archer Daniels Midland Company
- Method for preparing cis-alkoxy-substituted spirocyclic 1-H-pyrrolidine-2,4-dione derivatives3 Mar 2020US 10,577,320 B2Bayer CropScience AG
- Process for the production of epsilon caprolactam from 6- aminocaproic acid24 Mar 2022US 2022/0089536 A1Aquafil S.P.A.
- Preparation of 6-aminocaproic acid from 5-formyl valeric acid3 Mar 2022US 2022/0064679 A1Genomatica, Inc.
- Preparation of caprolactam from 6-amino caproic acid obtained in a fermentation process10 Jun 2021US 2021/0171459 A1Genomatica, Inc.
- Oxidation catalysts1 Apr 2021US 2021/0094020 A1Archer Daniels Midland Company
- Preparation of 6-aminocaproic acid from 5-formyl valeric acid17 Sep 2020US 2020/0291436 A1Genomatica, Inc.
Most cited
By later US patents
- Process for the preparation of epsilon-caprolactam and epsilon-caprolactam precursors54US 5,700,934 ADsm N. V. · 1997
- Process to prepare ε-caprolactam51US 6,194,572 B1Dsm N. V. · 2001
- Process for the preparation of ε-caprolactam50US 6,353,100 B1Dsm N. V. · 2002
- Process for the preparation of ε-caprolactam49US 6,660,857 B2Dsm N. V. · 2003
- Process for simultaneously preparing caprolactam and hexamethylene diamine36US 6,147,208 ABASF SE · 2000