B01D 3/4238
Head-, side- and bottom stream
Official title: {Head-, side- and bottom stream}
B01D3/4238 (Head-, side- and bottom stream) appears on 13 US grants and 5 published applications in this corpus.
Search patents in B01D- Granted patents
- 13
- Published applications
- 5
- Assignees
- 9
- Inventors
- 28
- Latest grant
- 22 Feb 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Ethyl acetate removal during VAM production22 Feb 2022US 11,254,636 B2LyondellBasell Acetyls, LLC
- Method for controlling and cooling a distillation column16 Apr 2013US 8,419,903 B2
- Method and device for carrying out the distillative separation of C5+ cuts30 Jan 2007US 7,169,267 B2BASF SE
- Dividing wall fractionation column control system and apparatus6 May 2003US 6,558,515 B1Uop LLC
- Dividing wall column control system22 Apr 2003US 6,551,465 B1Uop LLC
- Ethyl acetate removal during vam production11 Feb 2021US 2021/0040027 A1LyondellBasell Acetyls, LLC
- Method for controlling and cooling a distillation column22 Jul 2010US 2010/0181184 A1
- Process for the distillative separation of mixtures of substances25 May 2006US 2006/0108212 A1
- System and method for carrying out a discontinuous rectification or reaction4 May 2006US 2006/0090995 A1Cognis IP Management GmbH
- Method and device for carrying out the distillative separation of c5+ cuts22 Jan 2004US 2004/0011706 A1BASF SE
Most cited
By later US patents
- Dividing wall column control system38US 6,551,465 B1Uop LLC · 2003
- Dividing wall fractionation column control system and apparatus25US 6,558,515 B1Uop LLC · 2003
- Fractionating column control apparatus and methods11US 5,047,125 AConoco Inc. · 1991
- Fractionation heat balance control system8US 4,024,027 AUop LLC · 1977
- Method and device for carrying out the distillative separation of C5+ cuts8US 7,169,267 B2BASF SE · 2007