B01F 33/40
Mixers using gas or liquid agitation
Official title: Mixers using gas or liquid agitation, e.g. with air supply tubes
B01F33/40 (Mixers using gas or liquid agitation) appears on 481 US grants and 420 published applications in this corpus.
Search patents in B01F- Granted patents
- 481
- Published applications
- 420
- Assignees
- 348
- Inventors
- 1,058
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 8 | 0 |
| 1979 | 8 | 0 |
| 1980 | 7 | 0 |
| 1981 | 8 | 0 |
| 1982 | 11 | 0 |
| 1983 | 9 | 0 |
| 1984 | 9 | 0 |
| 1985 | 10 | 0 |
| 1986 | 14 | 0 |
| 1987 | 6 | 0 |
| 1988 | 10 | 0 |
| 1989 | 7 | 0 |
| 1990 | 8 | 0 |
| 1991 | 6 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 11 | 0 |
| 1998 | 8 | 0 |
| 1999 | 6 | 0 |
| 2000 | 7 | 0 |
| 2001 | 8 | 5 |
| 2002 | 9 | 12 |
| 2003 | 8 | 14 |
| 2004 | 13 | 25 |
| 2005 | 12 | 25 |
| 2006 | 7 | 35 |
| 2007 | 14 | 12 |
| 2008 | 9 | 13 |
| 2009 | 9 | 15 |
| 2010 | 18 | 18 |
| 2011 | 5 | 13 |
| 2012 | 11 | 12 |
| 2013 | 14 | 12 |
| 2014 | 11 | 9 |
| 2015 | 14 | 10 |
| 2016 | 8 | 14 |
| 2017 | 7 | 14 |
| 2018 | 7 | 13 |
| 2019 | 21 | 27 |
| 2020 | 15 | 29 |
| 2021 | 19 | 23 |
| 2022 | 16 | 19 |
| 2023 | 15 | 16 |
| 2024 | 12 | 14 |
| 2025 | 12 | 12 |
| 2026 | 7 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01F 33/406In receptacles with gas supply only at the bottom138
- B01F 33/403For mixing liquids76
- B01F 33/405In receptacles having guiding conduits therein57
- B01F 33/402Comprising supplementary stirring elements56
- B01F 33/407By blowing gas on the material from above37
- B01F 33/404For mixing material moving continuously therethrough32
- B01F 33/409Parts32
- B01F 33/408Controlling27
Recent patents
- Self-cleaning homogeneous mixer-bleeder system8 Sep 2026US 12,729,355 B2Talleres Ruiz, S.A.
- Rotor of gas dispersion arrangement4 Aug 2026US 12,697,626 B2Metso Finland Oy
- Mixing device for producing a powder mixture14 Jul 2026US 12,678,756 B2EOS GmbH Electro Optical Systems
- Slurry storing and mixing device2 Jun 2026US 12,643,059 B2Proterial, Ltd.
- Procedure and installation for loading boreholes with bulk water-based suspension or watergel type explosives19 May 2026US 12,631,434 B2Maxamcorp International, S.L.
- Procedure and installation for loading boreholes with bulk water-based suspension or watergel type explosives30 Jul 2026US 2026/0219018 A1Maxamcorp International, S.L.
- Procedures for separating biological samples using dense immunomagnetic beads2 Jul 2026US 2026/0185989 A1Raven Biomaterials
- Iced beverage blending cup devices, systems, and methods25 Jun 2026US 2026/0174286 A1
- Diffuser assembly for use in wastewater treatment21 May 2026US 2026/0138100 A2Ssi Aeration, Inc.
- Method and apparatus for marking a liquid hydrocarbon in a reservoir30 Apr 2026US 2026/0117136 A1Sicpa Holding SA
Most cited
By later US patents
- Apparatus and method for controlling sonic treatment366US 6,719,449 B1Covaris, Inc. · 2004
- Method and apparatus for acoustically controlling liquid solutions in microfluidic devices300US 6,948,843 B2Covaris, Inc. · 2005
- Automated biological reaction apparatus275US 5,595,707 AVentana Medical Systems, Inc. · 1997
- Method and system for producing complex-shape objects271US 6,046,426 ASandia Corporation · 2000
- Automated biological reaction apparatus245US 6,352,861 B1Ventana Medical Systems, Inc. · 2002