B03D 1/1425
Air-sparged hydrocyclones
Official title: {air-sparged hydrocyclones}
B03D1/1425 (Air-sparged hydrocyclones) appears on 36 US grants and 17 published applications in this corpus.
Search patents in B03D- Granted patents
- 36
- Published applications
- 17
- Assignees
- 21
- Inventors
- 89
- Latest grant
- 18 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 1 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 2 | 2 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 2 |
| 2020 | 0 | 0 |
| 2021 | 2 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 1 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Aerated hydrocyclone apparatus and method for cyclonic froth separation18 Mar 2025US 12,251,718 B2
- Aerated hydrocyclone apparatus and method for cyclonic froth separation21 Feb 2023US 11,583,868 B2Narmer-engsim LLC
- Cyclone underflow scavengering process using enhanced mineral separation circuits (EMSC)20 Jul 2021US 11,066,725 B2Cidra Corporate Services Inc.
- Hydrocyclone18 May 2021US 11,007,540 B2Vulco, S.A.
- Method for using an air-sparged hydrocyclone for cryogenic gas vapor separation5 Feb 2019US 10,195,615 B2Sustainable Energy Solutions, LLC
- Aerated hydrocyclone apparatus and method for cyclonic froth separation3 Jul 2025US 2025/0214092 A1
- Vortex mineralization-static separation flotation device and flotation method22 May 2025US 2025/0161957 A1China University of Mining and Technology
- Increasing flotation recovery and throughput7 Nov 2024US 2024/0367180 A1
- Aerated hydrocyclone apparatus and method for cyclonic froth separation25 May 2023US 2023/0158515 A1Narmer-engsim LLC
- Aerated hydrocyclone apparatus and method for cyclonic froth separation10 Feb 2022US 2022/0040710 A1Narmer-engsim LLC
Most cited
By later US patents
- Air-sparged hydrocyclone and method141US 4,279,743 AUniversity of Utah · 1981
- Air sparged hydrocyclone flotation apparatus and methods for separating particles from a particulate suspension80US 4,838,434 AUniversity of Utah · 1989
- Flotation apparatus and method77US 4,744,890 AUniversity of Utah · 1988
- Apparatus and method for separating particles from a fluid suspension74US 4,397,741 AUniversity of Utah · 1983
- Flotation apparatus and method for achieving flotation in a centrifugal field62US 4,399,027 AUniversity of Utah Research Foundation · 1983