C07C 51/445
By steam distillation
Official title: {by steam distillation}
C07C51/445 (By steam distillation) appears on 46 US grants and 52 published applications in this corpus.
Search patents in C07C- Granted patents
- 46
- Published applications
- 52
- Assignees
- 21
- Inventors
- 75
- Latest grant
- 13 Aug 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 1 | 7 |
| 2012 | 3 | 5 |
| 2013 | 5 | 3 |
| 2014 | 3 | 3 |
| 2015 | 5 | 1 |
| 2016 | 0 | 2 |
| 2017 | 3 | 2 |
| 2018 | 4 | 7 |
| 2019 | 7 | 1 |
| 2020 | 2 | 4 |
| 2021 | 1 | 6 |
| 2022 | 2 | 1 |
| 2023 | 3 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 4 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for producing acetic acid13 Aug 2024US 12,060,322 B2Daicel Corporation
- Methods and systems for producing acetic acid7 Nov 2023US 11,807,597 B2LyondellBasell Acetyls, LLC
- Plant and process for concentrating tartaric acid12 Sep 2023US 11,752,446 B2Distillerie Mazzari S.P.A
- Water-based extraction and purification processes for cannabinoid acids11 Apr 2023US 11,623,909 B2Medpharm Iowa LLC
- Method for producing acetic acid1 Nov 2022US 11,485,698 B2Daicel Corporation
- Process and plant for treatment of wastewater stream from acrylic acid and/or acrylate production plant4 Dec 2025US 2025/0368557 A1
- Utilization of polyethylene-containing mixtures to form long-chain alkyl dicarboxylic acids by way of oxidative degradation20 Feb 2025US 2025/0059126 A1
- Method for preparation of high purity (meth)acrylic acid16 Jan 2025US 2025/0019337 A1LG Chem.Ltd.
- Method for preparation of high purity (meth)acrylic acid2 Jan 2025US 2025/0002439 A1LG Chem.Ltd.
- Process for acetic acid production by removing permanganate reducing compounds29 Jun 2023US 2023/0202956 A1Celanese International Corporation
Most cited
By later US patents
- Waste water treatment in a method for producing formic acid which is free of water15US 6,867,329 B2BASF SE · 2005
- Method and apparatus for carbonylating methanol with acetic acid enriched flash stream15US 7,820,855 B2Celanese International Corporation · 2010
- Purification of organic polycarboxylic acids10US 5,159,109 AAmoco Corporation · 1992
- Process for the non-degenerative distillation of fatty acids7US 4,595,461 AHenkel Kommanditgesellschaft auf Aktien · 1986
- Dividing wall distillation column for producing high purity acrylic acid and fractional distillation method using the same7US 8,932,434 B2LG Chem.Ltd. · 2015