B03D 1/028
Control and monitoring of flotation processes
Official title: {Control and monitoring of flotation processes; computer models therefor}
B03D1/028 (Control and monitoring of flotation processes) appears on 390 US grants and 247 published applications in this corpus.
Search patents in B03D- Granted patents
- 390
- Published applications
- 247
- Assignees
- 279
- Inventors
- 797
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 4 | 0 |
| 1979 | 6 | 0 |
| 1980 | 9 | 0 |
| 1981 | 6 | 0 |
| 1982 | 2 | 0 |
| 1983 | 6 | 0 |
| 1984 | 6 | 0 |
| 1985 | 3 | 0 |
| 1986 | 8 | 0 |
| 1987 | 3 | 0 |
| 1988 | 9 | 0 |
| 1989 | 10 | 0 |
| 1990 | 9 | 0 |
| 1991 | 9 | 0 |
| 1992 | 16 | 0 |
| 1993 | 10 | 0 |
| 1994 | 15 | 0 |
| 1995 | 11 | 0 |
| 1996 | 13 | 0 |
| 1997 | 15 | 0 |
| 1998 | 11 | 0 |
| 1999 | 9 | 0 |
| 2000 | 11 | 0 |
| 2001 | 6 | 1 |
| 2002 | 6 | 4 |
| 2003 | 5 | 8 |
| 2004 | 9 | 9 |
| 2005 | 5 | 10 |
| 2006 | 3 | 7 |
| 2007 | 5 | 6 |
| 2008 | 3 | 9 |
| 2009 | 10 | 8 |
| 2010 | 3 | 9 |
| 2011 | 5 | 13 |
| 2012 | 7 | 11 |
| 2013 | 6 | 12 |
| 2014 | 5 | 10 |
| 2015 | 9 | 18 |
| 2016 | 10 | 9 |
| 2017 | 8 | 12 |
| 2018 | 10 | 15 |
| 2019 | 9 | 6 |
| 2020 | 8 | 9 |
| 2021 | 12 | 18 |
| 2022 | 7 | 11 |
| 2023 | 7 | 12 |
| 2024 | 10 | 10 |
| 2025 | 6 | 9 |
| 2026 | 5 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and system for flotation separation in a magnetically controllable and steerable medium5 May 2026US 12,618,010 B2Cidra Corporate Services Inc.
- Bubble size monitoring and control24 Feb 2026US 12,559,389 B2Schlumberger Technology Corporation
- Method and arrangement for process water treatment17 Feb 2026US 12,551,903 B2Metso Finland Oy
- Method and system for treating fluid and flotation arrangement10 Feb 2026US 12,545,599 B2Metso Finland Oy
- Apparatus and method for controlling chemical dosing optimization for water treatment plant20 Jan 2026US 12,528,715 B2Doosan Enerbility Co., Ltd.
- Beneficiation method for improving grade of magnesium-containing copper sulfide ore concentrate8 Jan 2026US 2026/0009100 A1Kunming Metallurgical Research Institute Co., Ltd.
- Air bubble forming device, air bubble forming method, evaluation device, and evaluation method25 Dec 2025US 2025/0387763 A1Kagoshima University
- Sparger Status Sensor System9 Oct 2025US 2025/0312803 A1Eriez Manufacturing Co.
- The control of continuous water treatment14 Aug 2025US 2025/0256998 A1The Water & Carbon Group Pty, Ltd.
- Method And Apparatus For Separation Of A Substance From Water5 Jun 2025US 2025/0178927 A1OPEC Remediation Technologies Pty Limited
Most cited
By later US patents
- Microalgae separator apparatus and method117US 6,524,486 B2Sepal Technologies Ltd. · 2003
- Method and apparatus for treatment of wastewater employing membrane bioreactors92US 6,805,806 B2Hydrotreat, Inc. · 2004
- 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
- Centrifugal flotation separator72US 4,094,783 A1978