B03D 1/16
With impellers
Official title: with impellers; Subaeration machines {(mixing gases or vapours with liquids B01F23/20)}
B03D1/16 (With impellers) appears on 239 US grants and 139 published applications in this corpus.
Search patents in B03D- Granted patents
- 239
- Published applications
- 139
- Assignees
- 153
- Inventors
- 474
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 8 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 3 | 0 |
| 1990 | 7 | 0 |
| 1991 | 9 | 0 |
| 1992 | 7 | 0 |
| 1993 | 10 | 0 |
| 1994 | 7 | 0 |
| 1995 | 4 | 0 |
| 1996 | 13 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 8 | 0 |
| 2000 | 9 | 0 |
| 2001 | 4 | 1 |
| 2002 | 3 | 1 |
| 2003 | 1 | 6 |
| 2004 | 7 | 11 |
| 2005 | 4 | 6 |
| 2006 | 2 | 9 |
| 2007 | 2 | 3 |
| 2008 | 7 | 10 |
| 2009 | 2 | 6 |
| 2010 | 5 | 8 |
| 2011 | 6 | 3 |
| 2012 | 6 | 4 |
| 2013 | 6 | 9 |
| 2014 | 2 | 3 |
| 2015 | 3 | 7 |
| 2016 | 5 | 2 |
| 2017 | 1 | 4 |
| 2018 | 4 | 6 |
| 2019 | 4 | 4 |
| 2020 | 4 | 11 |
| 2021 | 7 | 6 |
| 2022 | 3 | 5 |
| 2023 | 2 | 7 |
| 2024 | 5 | 4 |
| 2025 | 4 | 2 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Rotor of gas dispersion arrangement4 Aug 2026US 12,697,626 B2Metso Finland Oy
- Method and system for flotation separation in a magnetically controllable and steerable medium5 May 2026US 12,618,010 B2Cidra Corporate Services Inc.
- Pre-flotation high efficiency slurry conditioning device for wide-particle-grade flotation13 Jan 2026US 12,521,732 B2China University of Mining and Technology
- System for establishing a digital interconnection between vessels for collection of micro-plastics in a secured way30 Sep 2025US 12,428,315 B2
- Froth flotation cell17 Jun 2025US 12,330,170 B2Outotec (Finland) Oy
- Process and composition for treating an ore1 Jan 2026US 2026/0001087 A1
- The control of continuous water treatment14 Aug 2025US 2025/0256998 A1The Water & Carbon Group Pty, Ltd.
- Devices for vortex flotation mineralization based on confined space and methods for mineralization29 May 2025US 2025/0170586 A1China University of Mining and Technology
- System for establishing a digital interconnection between vessels for collection of micro-plastics in a secured way29 Aug 2024US 2024/0286925 A1
- Rotor of gas dispersion arrangement8 Aug 2024US 2024/0261800 A1Metso Finland Oy
Most cited
By later US patents
- Adsorptive bubble separation methods and systems for dewatering suspensions of microalgae and extracting components therefrom61US 5,951,875 AEastman Chemical Company · 1999
- High intensity conditioning mill and method53US 4,483,624 AFreeport Kaolin Company · 1984
- Method for rupturing microalgae cells53US 6,000,551 AEastman Chemical Company · 1999
- Method of separating carbonaceous components from particulate coal containing inorganic solids and apparatus therefor51US 4,998,624 ACanadian Patents and Development Limited · 1991
- Oil and water separating system with hydrocyclone and floatation device42US 5,021,165 AConoco Specialty Products Inc. · 1991