B01F 27/21
Mixers with rotary stirring devices in fixed receptacles: characterised by their rotating
Official title: characterised by their rotating shafts
B01F27/21 (Mixers with rotary stirring devices in fixed receptacles: characterised by their rotating) appears on 424 US grants and 513 published applications in this corpus.
Search patents in B01F- Granted patents
- 424
- Published applications
- 513
- Assignees
- 307
- Inventors
- 971
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 7 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 4 |
| 2002 | 4 | 3 |
| 2003 | 9 | 4 |
| 2004 | 2 | 5 |
| 2005 | 4 | 10 |
| 2006 | 0 | 6 |
| 2007 | 4 | 5 |
| 2008 | 5 | 11 |
| 2009 | 2 | 9 |
| 2010 | 10 | 10 |
| 2011 | 6 | 22 |
| 2012 | 8 | 14 |
| 2013 | 11 | 25 |
| 2014 | 24 | 25 |
| 2015 | 21 | 37 |
| 2016 | 26 | 29 |
| 2017 | 26 | 28 |
| 2018 | 27 | 31 |
| 2019 | 29 | 39 |
| 2020 | 24 | 31 |
| 2021 | 23 | 32 |
| 2022 | 23 | 20 |
| 2023 | 21 | 40 |
| 2024 | 21 | 34 |
| 2025 | 23 | 26 |
| 2026 | 6 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01F 27/213Characterised by the connection with the drive144
- B01F 27/2122Hollow shafts110
- B01F 27/2123Shafts with both stirring means and feeding or discharging means90
- B01F 27/2121Composed of interconnected parts70
- B01F 27/211Characterised by the material of the shaft43
- B01F 27/2124Shafts with adjustable length26
- B01F 27/212Construction of the shaft7
Recent patents
- Rotary filtering type two-in-one stirring kettle12 May 2026US 12,623,191 B2Innovation Research Institute of Zhejiang University of Technology, Shengzhou
- Plunger mixer device12 May 2026US 12,623,192 B2Sub-Mergent Technologies, Inc.
- Mixer, system for applying a building material and method for producing a structure from building material21 Apr 2026US 12,605,862 B2Sika Technology AG
- Container for food processing system24 Mar 2026US 12,582,264 B2SharkNinja Operating LLC
- Paper stock modification device10 Mar 2026US 12,571,160 B2Taizen Co., Ltd.
- Foam breaker device and methods of use27 Aug 2026US 2026/0250618 A1Life Technologies Corporation
- Cap for a fluid sample dispenser25 Jun 2026US 2026/0177049 A1Gary Kane Concept SAS
- Pot stirrer for induction cooking vessel11 Jun 2026US 2026/0157565 A1LG Electronics Inc.
- Powder mixer11 Jun 2026US 2026/0158455 A1Woowon Co., Ltd.
- Optimization method and device based on integration of flocculation, vacuum and solidified sludge11 Jun 2026US 2026/0159420 A1Huzhou Vocational & Technical College
Most cited
By later US patents
- Method and apparatus for packaging, mixing and delivering bone cement161US 5,951,160 ABiomet, Inc. · 1999
- Mixing systems and related mixers136US 7,682,067 B2Baxter Healthcare S. A. · 2010
- Method for fluxing molten metal111US 5,616,167 A1997
- Method and apparatus for preparing a self-curing two component powder/liquid cement96US 4,808,184 ALaboratorium fur experimentelle Chirurgie Forschungsinstitut · 1989
- Portable mixing/delivery apparatus for pre-blended granular mixtures95US 6,666,573 B22003