B01D 3/425
Head-, bottom- and feed stream
Official title: {Head-, bottom- and feed stream}
B01D3/425 (Head-, bottom- and feed stream) appears on 23 US grants and 3 published applications in this corpus.
Search patents in B01D- Granted patents
- 23
- Published applications
- 3
- Assignees
- 11
- Inventors
- 33
- Latest grant
- 3 Sep 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 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 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for operating a distillation column3 Sep 2024US 12,076,670 B2Covestro Deutschland AG
- Method for controlling a rectification column1 Feb 2022US 11,235,260 B2Covestro Deutschland AG
- Process for the separation of a hydrocarbon-containing feed stream15 Oct 2013US 8,557,087 B2Total Petrochemicals Research Feluy
- Control system using an adaptive neural network for target and path optimization for a multivariable, nonlinear process17 Jun 1997US 5,640,491 ANeuralware, Inc.
- High efficiency chemical processing19 Mar 1996US 5,500,095 AAthens Corporation
- Method for operating a distillation column12 Jan 2023US 2023/0008804 A1Covestro Deutschland AG
- Method for controlling a rectification column20 Jun 2019US 2019/0184304 A1Covestro Deutschland AG
- Process for the Separation of a Hydrocarbon-Containing Feed Stream21 Oct 2010US 2010/0264014 A1Total Petrochemicals Research Feluy
Most cited
By later US patents
- Control system using an adaptive neural network for target and path optimization for a multivariable, nonlinear process157US 5,640,491 ANeuralware, Inc. · 1997
- Adaptive-predictive control system128US 4,358,822 A1982
- Control system using an adaptive neural network for target and path optimization for a multivariable, nonlinear process60US 5,477,444 A1995
- Recovery of HF from an alkylation unit acid stream containing acid soluble oil55US 4,199,409 APhillips Petroleum Company · 1980
- Adaptive-predictive control system34US 4,197,576 A1980