C07C 231/04
From ketenes by reaction with ammonia or amines
Official title: from ketenes by reaction with ammonia or amines
C07C231/04 (From ketenes by reaction with ammonia or amines) appears on 13 US grants and 7 published applications in this corpus.
Search patents in C07C- Granted patents
- 13
- Published applications
- 7
- Assignees
- 11
- Inventors
- 33
- Latest grant
- 1 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Environment-friendly process for selective acylation of aminophenol1 Oct 2024US 12,103,900 B2Laxmi Organic Industries Ltd
- Method for preparing pyrimidone compound1 Dec 2020US 10,851,068 B2Sunshine Lake Pharma Co., Ltd.
- 1,3-diketoamide functional polymers and compositions employing the same26 May 2015US 9,040,619 B2Eastman Chemical Company
- Method for producing acetoacetic acid arylamides4 Oct 2011US 8,030,519 B2Lon za AG
- Acetoacetylated N-phenyl-p-phenylenediamines27 Sep 2005US 6,949,677 B2Lonza Ltd.
- An environment-friendly process for selective acylation of aminophenol6 Apr 2023US 2023/0104724 A1Laxmi Organic Industries Ltd
- Method for preparing pyrimidone compound21 May 2020US 2020/0157054 A1North & South Brother Pharmacy Investment Company Limited
- 1,3-Diketoamide Functional Polymers and Compositions Employing the Same8 May 2014US 2014/0128537 A1Eastman Chemical Company
- Method for Producing Acetoacetic Acid Arylamides10 Sep 2009US 2009/0227811 A1Lon za AG
- Acetoacetylation of alcohols, thiols and amines in a microreactor29 Jun 2006US 2006/0142588 A1
Most cited
By later US patents
- Process for preparing acetoacetates3US 5,756,826 ALonza Ltd. · 1998
- Preparation of acetoacetarylamides2US 5,523,486 AHoechst Aktiengesellschaft · 1996
- Method for producing acetoacetylated aromatic amines2US 6,734,324 B2Lonza Ltd. · 2004
- Acetoacetylated N-phenyl-p-phenylenediamines2US 6,949,677 B2Lonza Ltd. · 2005