B03D 1/247
Mixing gas and slurry in a device separate from the flotation tank
Official title: {Mixing gas and slurry in a device separate from the flotation tank, i.e. reactor-separator type}
B03D1/247 (Mixing gas and slurry in a device separate from the flotation tank) appears on 203 US grants and 140 published applications in this corpus.
Search patents in B03D- Granted patents
- 203
- Published applications
- 140
- Assignees
- 171
- Inventors
- 376
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 6 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 0 | 0 |
| 1988 | 8 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 7 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 9 | 0 |
| 1999 | 7 | 0 |
| 2000 | 11 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 2 |
| 2003 | 4 | 4 |
| 2004 | 1 | 10 |
| 2005 | 5 | 5 |
| 2006 | 1 | 4 |
| 2007 | 4 | 6 |
| 2008 | 1 | 8 |
| 2009 | 5 | 6 |
| 2010 | 3 | 8 |
| 2011 | 2 | 11 |
| 2012 | 5 | 6 |
| 2013 | 3 | 10 |
| 2014 | 7 | 2 |
| 2015 | 8 | 4 |
| 2016 | 7 | 9 |
| 2017 | 3 | 4 |
| 2018 | 4 | 3 |
| 2019 | 5 | 3 |
| 2020 | 9 | 4 |
| 2021 | 3 | 8 |
| 2022 | 1 | 7 |
| 2023 | 2 | 7 |
| 2024 | 6 | 4 |
| 2025 | 5 | 4 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pre-flotation high efficiency slurry conditioning device for wide-particle-grade flotation13 Jan 2026US 12,521,732 B2China University of Mining and Technology
- Headrace system13 Jan 2026US 12,522,518 B2Utsunomiya Kogyo Co., Ltd.
- Fluid treatment system, separator and method using a magnetic field30 Sep 2025US 12,427,440 B2RJ Enterprises, Inc.
- Nanogas shear processing15 Jul 2025US 12,357,926 B2Nanogas Technologies Inc.
- Pallet coating waste recovery system8 Jul 2025US 12,350,695 B2Air and Liquid Systems, Inc.
- Fluid treatment system, separator and method using a magnetic field25 Dec 2025US 2025/0387732 A1RJ Enterprises, Inc.
- Nanogas shear processing6 Nov 2025US 2025/0339790 A1Nanogas Technologies Inc.
- Pallet coating waste recovery system25 Sep 2025US 2025/0296108 A1Air and Liquid Systems, Inc.
- Slurry feeding arrangement16 Jan 2025US 2025/0018404 A1Metso Finland Oy
- Membrane spargers for gravity separators and flotation machines14 Nov 2024US 2024/0375123 A1FLSmidth A/S
Most cited
By later US patents
- System and method for minimizing the negative enviromental impact of the oilsands industry76US 8,424,601 B2Ex-Tar Technologies · 2013
- Method of and means for hydrodynamic mixing67US 4,861,165 ABeloit Corporation · 1989
- Apparatus for dissolved air floatation and similar gas-liquid contacting operations64US 5,382,358 A1995
- Apparatus and process for the separation of hydrophobic and hydrophilic particles using microbubble column flotation together with a process and apparatus for generation of microbubbles57US 5,167,798 AVirginia Tech Intellectual Properties, Inc. · 1992
- Apparatus for the separation of hydrophobic and hydrophilic particles using microbubble column flotation together with a process and apparatus for generation of microbubbles51US 5,397,001 AVirginia Polytechnic Institute & State U. · 1995