B01F 27/111
Centrifugal stirrers, i.e. stirrers with radial outlets
Official title: Centrifugal stirrers, i.e. stirrers with radial outlets; Stirrers of the turbine type, e.g. with means to guide the flow
B01F27/111 (Centrifugal stirrers, i.e. stirrers with radial outlets) appears on 137 US grants and 138 published applications in this corpus.
Search patents in B01F- Granted patents
- 137
- Published applications
- 138
- Assignees
- 95
- Inventors
- 314
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 4 |
| 2002 | 4 | 2 |
| 2003 | 2 | 3 |
| 2004 | 2 | 5 |
| 2005 | 2 | 3 |
| 2006 | 3 | 9 |
| 2007 | 3 | 3 |
| 2008 | 5 | 5 |
| 2009 | 1 | 4 |
| 2010 | 4 | 8 |
| 2011 | 4 | 1 |
| 2012 | 4 | 9 |
| 2013 | 0 | 2 |
| 2014 | 3 | 5 |
| 2015 | 1 | 6 |
| 2016 | 5 | 7 |
| 2017 | 5 | 10 |
| 2018 | 7 | 9 |
| 2019 | 4 | 8 |
| 2020 | 11 | 5 |
| 2021 | 1 | 2 |
| 2022 | 4 | 8 |
| 2023 | 3 | 2 |
| 2024 | 3 | 9 |
| 2025 | 6 | 5 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Impeller and sparger assemblies for a bioprocessing system31 Mar 2026US 12,589,366 B2Global Life Sciences Solutions USA LLC
- Device and method for gassing a liquid31 Mar 2026US 12,589,367 B2Cetotec GmbH
- Stirring device with a shaft, adapted to be mounted in a fluid-mixing bioreactor, and method for assembling a stirring device16 Dec 2025US 12,497,584 B2Sartorius Stedim Fmt SAS
- Impeller assembly and solid-liquid mixing device using same16 Sep 2025US 12,415,166 B2Shangshui Smartech Ltd.
- Gas dispersion system19 Aug 2025US 12,390,773 B2NOV Process and Flow Technologies US, Inc.
- Impeller and Sparger Assemblies for a Bioprocessing System23 Jul 2026US 2026/0208127 A1Global Life Sciences Solutions USA LLC
- Powder mixer11 Jun 2026US 2026/0158455 A1Woowon Co., Ltd.
- Sinusoidal blade apparatus21 May 2026US 2026/0139683 A1
- Centrifugal impeller and an associated air fryer1 Jan 2026US 2026/0000243 A1Zhejiang Biyi Electric Appliance Co., Ltd.
- Low shear toroidal impeller18 Dec 2025US 2025/0381537 A1Donaldson Company, Inc.
Most cited
By later US patents
- Rotary device for treating molten metal131US 4,634,105 AFoseco International Limited · 1987
- Method of blending materials78US 4,850,702 AGEO Condor, Inc. · 1989
- Apparatus for mixing viscous liquid in a container52US 4,893,941 A1990
- Stirrer, having substantially triangular, radial blades, rising toward the circumference49US 4,444,510 ANederlandse Centrale Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek · 1984
- Centrifugal pump43US 4,086,306 A1978