B01F 23/233
Using driven stirrers with completely immersed stirring elements
Official title: using driven stirrers with completely immersed stirring elements
B01F23/233 (Using driven stirrers with completely immersed stirring elements) appears on 734 US grants and 534 published applications in this corpus.
Search patents in B01F- Granted patents
- 734
- Published applications
- 534
- Assignees
- 411
- Inventors
- 1,273
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 13 | 0 |
| 1978 | 7 | 0 |
| 1979 | 7 | 0 |
| 1980 | 14 | 0 |
| 1981 | 19 | 0 |
| 1982 | 9 | 0 |
| 1983 | 4 | 0 |
| 1984 | 11 | 0 |
| 1985 | 9 | 0 |
| 1986 | 4 | 0 |
| 1987 | 11 | 0 |
| 1988 | 10 | 0 |
| 1989 | 12 | 0 |
| 1990 | 14 | 0 |
| 1991 | 16 | 0 |
| 1992 | 15 | 0 |
| 1993 | 17 | 0 |
| 1994 | 18 | 0 |
| 1995 | 15 | 0 |
| 1996 | 18 | 0 |
| 1997 | 15 | 0 |
| 1998 | 14 | 0 |
| 1999 | 18 | 0 |
| 2000 | 24 | 0 |
| 2001 | 22 | 13 |
| 2002 | 20 | 10 |
| 2003 | 15 | 9 |
| 2004 | 13 | 19 |
| 2005 | 5 | 19 |
| 2006 | 6 | 20 |
| 2007 | 12 | 21 |
| 2008 | 14 | 30 |
| 2009 | 8 | 25 |
| 2010 | 25 | 37 |
| 2011 | 18 | 18 |
| 2012 | 18 | 24 |
| 2013 | 23 | 25 |
| 2014 | 23 | 27 |
| 2015 | 14 | 16 |
| 2016 | 23 | 21 |
| 2017 | 18 | 20 |
| 2018 | 10 | 19 |
| 2019 | 12 | 26 |
| 2020 | 20 | 30 |
| 2021 | 15 | 22 |
| 2022 | 14 | 21 |
| 2023 | 23 | 14 |
| 2024 | 15 | 17 |
| 2025 | 16 | 19 |
| 2026 | 7 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01F 23/2331Characterised by the introduction of the gas along the axis of the305
- B01F 23/2336Characterised by the location of the place of introduction of the gas305
- B01F 23/2334Provided with stationary guiding means surrounding at least partially the stirrer251
- B01F 23/2335Characterised by the direction of introduction of the gas relative to the99
- B01F 23/2333Single stirrer-drive aerating units57
- B01F 23/2332The stirrer rotating about a horizontal axis53
Recent patents
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- Device and method for gassing a liquid31 Mar 2026US 12,589,367 B2Cetotec GmbH
- Bioreactors10 Sep 2026US 2026/0265659 A1
- Bioreactors10 Sep 2026US 2026/0265660 A1
- Foam breaker device and methods of use27 Aug 2026US 2026/0250618 A1Life Technologies Corporation
- A milk texturing device6 Aug 2026US 2026/0223807 A1Breville Pty Limited
- Agitated tank with improved homogeneity bubble distribution and method thereof6 Aug 2026US 2026/0225048 A1
Most cited
By later US patents
- Device for releasing and diffusing bubbles into liquid140US 4,611,790 AShowa Aluminum Corporation · 1986
- Rotary blade-type apparatus for dissolving alloy elements and dispersing gas in an aluminum bath133US 4,802,656 AAluminium Pechiney · 1989
- Rotary device for treating molten metal131US 4,634,105 AFoseco International Limited · 1987
- Dispersing gas into molten metal131US 4,954,167 A1990
- Gas dispersion stirrer with flow-inducing blades127US 5,318,360 AStelzer Ruhrtechnik GmbH · 1994