B01D 3/4244
Head-, side- and feed stream
Official title: {Head-, side- and feed stream}
B01D3/4244 (Head-, side- and feed stream) appears on 12 US grants and 1 published applications in this corpus.
Search patents in B01D- Granted patents
- 12
- Published applications
- 1
- Assignees
- 7
- Inventors
- 22
- Latest grant
- 12 Nov 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 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 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Process for separation of propylene from a liquefied petroleum gas stream12 Nov 2019US 10,472,306 B1
- Process for recovering methylene chloride16 Jan 2007US 7,163,606 B2Xerox Corporation
- Apparatus for separation and purification of saturated hydrocarbon and method for separation and purification2 Jul 2002US 6,413,378 B1Nippon Zeon Co., Ltd.
- Automatic control of feedstock vacuum towers16 Jan 1990US 4,894,145 AApplied Automation, Inc.
- Fractional distillation column control16 Jul 1985US 4,529,484 APhillips Petroleum Company
Most cited
By later US patents
- Automatic control of feedstock vacuum towers20US 4,894,145 AApplied Automation, Inc. · 1990
- Draw rate signal generator15US 4,262,791 ATexaco Inc. · 1981
- Apparatus for separation and purification of saturated hydrocarbon and method for separation and purification12US 6,413,378 B1Nippon Zeon Co., Ltd. · 2002
- Method of controlling a distillation column for topping crude petroleum6US 4,007,112 AInstitut Francais du Petrole, des Carburants et Lubrifiants et Entreprise de Recherches et d'Activites Petrolieres Elf · 1977
- Fractional distillation column control6US 4,350,569 APhillips Petroleum Company · 1982