B01F 25/43
Mixing tubes
Official title: Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
B01F25/43 (Mixing tubes) appears on 2,343 US grants and 2,570 published applications in this corpus.
Search patents in B01F- Granted patents
- 2,343
- Published applications
- 2,570
- Assignees
- 1,433
- Inventors
- 5,531
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 17 | 0 |
| 1978 | 18 | 0 |
| 1979 | 11 | 0 |
| 1980 | 20 | 0 |
| 1981 | 18 | 0 |
| 1982 | 14 | 0 |
| 1983 | 14 | 0 |
| 1984 | 9 | 0 |
| 1985 | 17 | 0 |
| 1986 | 10 | 0 |
| 1987 | 10 | 0 |
| 1988 | 18 | 0 |
| 1989 | 25 | 0 |
| 1990 | 19 | 0 |
| 1991 | 17 | 0 |
| 1992 | 27 | 0 |
| 1993 | 14 | 0 |
| 1994 | 20 | 0 |
| 1995 | 32 | 0 |
| 1996 | 28 | 0 |
| 1997 | 22 | 0 |
| 1998 | 27 | 0 |
| 1999 | 49 | 0 |
| 2000 | 44 | 0 |
| 2001 | 38 | 20 |
| 2002 | 32 | 62 |
| 2003 | 57 | 73 |
| 2004 | 47 | 93 |
| 2005 | 41 | 78 |
| 2006 | 41 | 79 |
| 2007 | 37 | 82 |
| 2008 | 47 | 104 |
| 2009 | 50 | 110 |
| 2010 | 62 | 104 |
| 2011 | 53 | 114 |
| 2012 | 58 | 97 |
| 2013 | 69 | 89 |
| 2014 | 93 | 109 |
| 2015 | 91 | 119 |
| 2016 | 95 | 130 |
| 2017 | 93 | 152 |
| 2018 | 96 | 113 |
| 2019 | 116 | 123 |
| 2020 | 115 | 129 |
| 2021 | 102 | 121 |
| 2022 | 96 | 107 |
| 2023 | 92 | 112 |
| 2024 | 67 | 88 |
| 2025 | 96 | 99 |
| 2026 | 48 | 63 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01F 25/431Straight mixing tubes with baffles or obstructions that do not cause substantial1,302
- B01F 25/433Mixing tubes wherein the shape of the tube influences the mixing784
- B01F 25/432With means for dividing the material flow into separate sub-flows and for461
- B01F 25/434Mixing tubes comprising cylindrical or conical inserts provided with grooves or protrusions97
- B01F 25/435Mixing tubes composed of concentric tubular members69
Recent patents
- Non-destructive measurement, dispense, and replication of density gradients29 Sep 2026US 12,748,026 B2Beckman Coulter, Inc.
- Post-processing system15 Sep 2026US 12,736,003 B2Isuzu Motors Limited
- Drinking system with injector pump8 Sep 2026US 12,727,692 B2air up group GmbH
- Mixers for exhaust aftertreatment systems25 Aug 2026US 12,716,377 B2Cummins Emission Solutions Inc.
- Flange members and reservoirs incorporating the same18 Aug 2026US 12,708,883 B2Meissner Filtration Products, Inc.
- Static mixing elements with a separator and deflecting surfaces and static mixers1 Oct 2026US 2026/0295543 A1Medmix Switzerland AG
- Oxygen or hydrogen functional water production device1 Oct 2026US 2026/0296941 A1Cosan Co., Ltd.
- Removal of atmospheric pollutants from gas, related apparatus, processes and uses thereof24 Sep 2026US 2026/0284589 A1Intelligent Abatement, LLC
- Exhaust aftertreatment system24 Sep 2026US 2026/0286878 A1Donaldson Company, Inc.
- Static mixer3 Sep 2026US 2026/0257181 A1Re Mixers, Inc.
Most cited
By later US patents
- Capillary flow device951US 4,963,498 ABiotrack, Inc. · 1990
- Capillary flow device522US 4,756,884 ABiotrack, Inc. · 1988
- Device and method for pressure-driven plug transport and reaction451US 7,129,091 B2The University of Chicago · 2006
- Non-planar microstructures for manipulation of fluid samples448US 6,368,871 B1Cepheid · 2002
- Remote power recharge for electronic equipment421US 7,068,991 B22006