C07C 7/06
By azeotropic distillation
Official title: by azeotropic distillation
C07C7/06 (By azeotropic distillation) appears on 55 US grants and 24 published applications in this corpus.
Search patents in C07C- Granted patents
- 55
- Published applications
- 24
- Assignees
- 30
- Inventors
- 88
- Latest grant
- 18 Jun 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 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 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 11 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 2 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 3 |
| 2013 | 2 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 2 |
| 2016 | 1 | 1 |
| 2017 | 1 | 2 |
| 2018 | 1 | 1 |
| 2019 | 5 | 5 |
| 2020 | 3 | 0 |
| 2021 | 1 | 0 |
| 2022 | 1 | 3 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Process of preparing alcohols18 Jun 2024US 12,012,371 B2thyssenkrupp AG
- Method for producing 1,3-butadiene25 Oct 2022US 11,479,518 B2Sekisui Chemical Co., Ltd.
- Fuel production from alcohols24 Aug 2021US 11,097,995 B1The United States of America as represented by the Secretary of the Navy
- Thermally integrated distillation systems and processes using the same17 Nov 2020US 10,835,837 B2Eastman Chemical Company
- Method for producing and purifying 1,3-butadiene8 Sep 2020US 10,766,846 B2Compagnie Generale Des Etablissements Michelin
- Separation of carbon dioxide and sulfurous materials from gaseous mixtures2 Nov 2023US 2023/0348344 A18 Rivers Capital, LLC
- Method for processing a gaseous composition29 Sep 2022US 2022/0306948 A1thyssenkrupp AG
- Process of preparing alcohols22 Sep 2022US 2022/0298088 A1thyssenkrupp AG
- Method for producing 1,3-butadiene18 Aug 2022US 2022/0259120 A1Sekisui Chemical Co., Ltd.
- Method for producing and purifying 1,3-butadiene3 Oct 2019US 2019/0300470 A1Compagnie Generale Des Etablissements Michelin
Most cited
By later US patents
- Process for separating alpha-pinene from beta-pinene6US 3,987,121 AInternational Flavors & Fragrances Inc. · 1976
- Separation of m-xylene from p-xylene or o-xylene by azeotropic distillation6US 5,039,380 A1991
- Ester preparation6US 5,866,714 AARCO Chemical Technology, L. P. · 1999
- Separation of cyclohexane from cyclohexene by azeotropic or extractive distillation5US 5,069,756 A1991
- Separation of alpha-phellandrene from 3-carene by azeotropic distillation5US 5,380,405 A1995