B01F 23/23354
The gas being driven away from the rotating stirrer
Official title: {the gas being driven away from the rotating stirrer}
B01F23/23354 (The gas being driven away from the rotating stirrer) appears on 28 US grants and 15 published applications in this corpus.
Search patents in B01F- Granted patents
- 28
- Published applications
- 15
- Assignees
- 14
- Inventors
- 45
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 0 | 2 |
| 2013 | 1 | 2 |
| 2014 | 1 | 0 |
| 2015 | 2 | 2 |
| 2016 | 0 | 2 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device and method for gassing a liquid31 Mar 2026US 12,589,367 B2Cetotec GmbH
- Apparatus for treating fluids having improved aeration efficiency and operational durability7 Mar 2023US 11,596,907 B1
- Flotation machine rotor16 Jan 2018US 9,868,093 B2
- Flotation machine16 Jun 2015US 9,056,287 B2Outotec Oyj
- Aeration ship7 Apr 2015US 8,998,179 B2
- Device and method for gassing a liquid24 Aug 2023US 2023/0264153 A1Cetotec GmbH
- Aerator27 Oct 2016US 2016/0310914 A1
- Method and system for enhancing mass transfer in aeration/oxygenation systems7 Jul 2016US 2016/0193573 A1
- Method and system for enhancing mass transfer in aeration/oxygenation systems16 Apr 2015US 2015/0101993 A1
- Arrangement and method for producing a flow in a wastewater treatment tank26 Feb 2015US 2015/0053625 A1Invent Umwelt-Und Verfahrenstechnik AG
Most cited
By later US patents
- Gas dispersion stirrer with flow-inducing blades127US 5,318,360 AStelzer Ruhrtechnik GmbH · 1994
- Static oxygenator for suspension culture of animal cells52US 4,960,706 ABaxter International Inc. · 1990
- Apparatus for sparging gas into liquid46US 4,066,722 AUnion Carbide Corporation · 1978
- Liquid moving and mixing apparatus44US 4,014,526 A1977
- Aeration propeller and apparatus41US 4,240,990 AAeration Industries, Inc. · 1980