B01D 3/4222
Head- and side stream
Official title: {Head- and side stream}
B01D3/4222 (Head- and side stream) appears on 12 US grants and 6 published applications in this corpus.
Search patents in B01D- Granted patents
- 12
- Published applications
- 6
- Assignees
- 6
- Inventors
- 25
- Latest grant
- 12 Mar 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 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 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 3 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 2 | 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 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Slurry pumparound section of a fluid catalytic cracking unit fractionator12 Mar 2024US 11,925,929 B1Process Consulting Services, Inc.
- Method for separating and purifying mixture having small difference in boiling points20 Jul 2021US 11,065,556 B2LG Chem.Ltd.
- Process to produce acetic acid with recycle of water7 Jan 2020US 10,526,270 B2Celanese International Corporation
- Method for continuously operated pure distillation of oxiranes, especially propylene oxide23 Jun 2009US 7,550,064 B2BASF SE
- Method for the continuous purification by distillation of the solvent methanol, used in the synthesis of propylene oxide5 May 2009US 7,527,712 B2BASF SE
- Slurry pumparound section of a fluid catalytic cracking unit fractionator14 Mar 2024US 2024/0082802 A1Process Consulting Services, Inc.
- Method for separating and purifying mixture having small difference in boiling points23 Jul 2020US 2020/0230518 A1LG Chem.Ltd.
- Process to produce acetic acid with recycle of water21 Feb 2019US 2019/0055183 A1Celanese International Corporation
- Method for the continuous purification by distillation of the solvent methanol, used in the synthesis of propylene oxide24 Nov 2005US 2005/0258026 A1BASF SE
- Method for the continuous intermediate separation of the solvent used in the oxirane synthesis with no coupling product27 Oct 2005US 2005/0240037 A1BASF SE
Most cited
By later US patents
- Method for continuously operated pure distillation of oxiranes, especially propylene oxide26US 7,550,064 B2BASF SE · 2009
- Fractional distillation column control7US 4,367,121 APhillips Petroleum Company · 1983
- Fractionation process, control system and apparatus6US 4,167,475 AUop LLC · 1979
- Inferential correction of composition for a distillation analyzer6US 5,464,504 APhillips Petroleum Company · 1995
- Fractionator reflux pump method and apparatus3US 4,746,407 APhillips Petroleum Company · 1988