B01F 25/50
Circulation mixers
Official title: Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
B01F25/50 (Circulation mixers) appears on 1,026 US grants and 1,118 published applications in this corpus.
Search patents in B01F- Granted patents
- 1,026
- Published applications
- 1,118
- Assignees
- 748
- Inventors
- 2,383
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 7 | 0 |
| 1978 | 12 | 0 |
| 1979 | 8 | 0 |
| 1980 | 10 | 0 |
| 1981 | 4 | 0 |
| 1982 | 7 | 0 |
| 1983 | 5 | 0 |
| 1984 | 13 | 0 |
| 1985 | 10 | 0 |
| 1986 | 4 | 0 |
| 1987 | 9 | 0 |
| 1988 | 5 | 0 |
| 1989 | 6 | 0 |
| 1990 | 11 | 0 |
| 1991 | 6 | 0 |
| 1992 | 11 | 0 |
| 1993 | 6 | 0 |
| 1994 | 12 | 0 |
| 1995 | 19 | 0 |
| 1996 | 15 | 0 |
| 1997 | 13 | 0 |
| 1998 | 22 | 0 |
| 1999 | 15 | 0 |
| 2000 | 21 | 0 |
| 2001 | 19 | 11 |
| 2002 | 20 | 17 |
| 2003 | 12 | 18 |
| 2004 | 13 | 33 |
| 2005 | 12 | 28 |
| 2006 | 18 | 31 |
| 2007 | 19 | 35 |
| 2008 | 17 | 37 |
| 2009 | 17 | 40 |
| 2010 | 19 | 35 |
| 2011 | 14 | 49 |
| 2012 | 30 | 35 |
| 2013 | 30 | 58 |
| 2014 | 25 | 47 |
| 2015 | 28 | 59 |
| 2016 | 44 | 56 |
| 2017 | 51 | 64 |
| 2018 | 42 | 54 |
| 2019 | 55 | 64 |
| 2020 | 51 | 59 |
| 2021 | 40 | 61 |
| 2022 | 34 | 56 |
| 2023 | 41 | 50 |
| 2024 | 54 | 52 |
| 2025 | 39 | 41 |
| 2026 | 22 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01F 25/53In which the mixture is discharged from and reintroduced into a receptacle374
- B01F 25/51In which the mixture is circulated through a set of tubes140
- B01F 25/52With a rotary stirrer in the recirculation tube120
- B01F 25/54Provided with a pump inside the receptacle to recirculate the material within86
Recent patents
- Apparatuses, systems, and methods for storing, mixing, and delivering slurries22 Sep 2026US 12,741,253 B2Wolf Process Technology, LLC
- Solubilizer for various mixtures15 Sep 2026US 12,734,489 B2
- Methods and systems for in-line mixing of hydrocarbon liquids8 Sep 2026US 12,728,394 B2Marathon Petroleum Company LP
- Mixing silo for bulk material, production plant with a mixing silo of this type and method for operating a mixing silo of this type8 Sep 2026US 12,728,398 B2Coperion GmbH
- Flange members and reservoirs incorporating the same18 Aug 2026US 12,708,883 B2Meissner Filtration Products, Inc.
- Acid mixing system17 Sep 2026US 2026/0273148 A1Isopure, Corp.
- Bubble-fountain-type water circulation device3 Sep 2026US 2026/0257951 A1C&C Solution Co., Ltd
- Battery Paste Mixer and Method13 Aug 2026US 2026/0233177 A1Wirtz Manufacturing Company, Inc.
- Pump and combination pump/mixer device13 Aug 2026US 2026/0235115 A1Alphinity USA, Inc.
- Liquid dispersion preparation processes6 Aug 2026US 2026/0225051 A1Dsm IP Assets B.V.
Most cited
By later US patents
- Nucleic acid amplification utilizing microfluidic devices541US 6,960,437 B2California Institute of Technology · 2005
- Liquid waste oxygenation441US 5,463,176 A1995
- Fluid mixer using countercurrent injection428US 9,004,744 B1Techni-Blend, Inc. · 2015
- Dissolved oxygen control system for aquaculture249US 10,219,491 B2Pentair Water Pool and Spa, Inc. · 2019
- Process and apparatus for making aqueous hydrocarbon fuel compositions, and aqueous hydrocarbon fuel compositions171US 6,383,237 B12002