C07C 67/46
From ketenes or polyketenes
Official title: from ketenes or polyketenes
C07C67/46 (From ketenes or polyketenes) appears on 46 US grants and 38 published applications in this corpus.
Search patents in C07C- Granted patents
- 46
- Published applications
- 38
- Assignees
- 29
- Inventors
- 134
- Latest grant
- 31 Oct 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 3 |
| 2003 | 2 | 2 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 3 |
| 2012 | 2 | 2 |
| 2013 | 3 | 5 |
| 2014 | 1 | 3 |
| 2015 | 3 | 5 |
| 2016 | 2 | 1 |
| 2017 | 2 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 2 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for preparation of acetoacetylated polyols31 Oct 2023US 11,802,104 B2Arxada AG
- Preparation of acetate compounds via a ketene compound17 Aug 2021US 11,091,424 B2BASF SE
- Preparation of pentanol with ethanol derived from fermentation23 May 2017US 9,656,932 B2Pioneer Energy, Inc.
- Synthesis of high caloric fuels and chemicals via ketene and diketene intermediates4 Apr 2017US 9,611,186 B2Pioneer Energy, Inc.
- Preparation of pentanol with ethanol derived from fermentation13 Sep 2016US 9,440,898 B2Pioneer Energy, Inc.
- Polyol-Derived Compounds9 Jul 2026US 2026/0193165 A1Arxada AG
- Acetoacetate Based Ketals16 Oct 2025US 2025/0320175 A1Arxada AG
- Acetoacetate Based Ketals2 Jan 2025US 2025/0002446 A1Arxada AG
- Method for Preparation of Acetoacetate Ester Compounds11 Aug 2022US 2022/0251279 A1Arxada AG
- Method for Preparation of Acetoacetylated Polyols16 Jun 2022US 2022/0185762 A1Lonza Solutions AG
Most cited
By later US patents
- Therapeutic compositions115US 6,323,237 B1BTG International Limited · 2001
- Therapeutic compositions114US 6,207,856 B1BTG International Limited · 2001
- Therapeutic compositions75US 8,101,653 B2BTG International Limited · 2012
- Process for preparing diesters of malonic acid53US 4,256,908 AUbe Industries, Ltd. · 1981
- Preparation of vinyl acetate51US 5,731,456 AEastman Chemical Company · 1998