B03D 1/1406
With special arrangement of a plurality of flotation cells
Official title: {with special arrangement of a plurality of flotation cells, e.g. positioning a flotation cell inside another}
B03D1/1406 (With special arrangement of a plurality of flotation cells) appears on 135 US grants and 74 published applications in this corpus.
Search patents in B03D- Granted patents
- 135
- Published applications
- 74
- Assignees
- 91
- Inventors
- 261
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 9 | 0 |
| 1987 | 0 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 8 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 1 |
| 2002 | 2 | 0 |
| 2003 | 0 | 4 |
| 2004 | 1 | 5 |
| 2005 | 2 | 2 |
| 2006 | 0 | 2 |
| 2007 | 4 | 2 |
| 2008 | 2 | 1 |
| 2009 | 0 | 2 |
| 2010 | 1 | 0 |
| 2011 | 1 | 3 |
| 2012 | 2 | 4 |
| 2013 | 2 | 3 |
| 2014 | 1 | 1 |
| 2015 | 3 | 2 |
| 2016 | 3 | 6 |
| 2017 | 1 | 1 |
| 2018 | 3 | 5 |
| 2019 | 4 | 4 |
| 2020 | 2 | 14 |
| 2021 | 6 | 3 |
| 2022 | 3 | 2 |
| 2023 | 3 | 5 |
| 2024 | 2 | 0 |
| 2025 | 1 | 2 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and system for treating fluid and flotation arrangement10 Feb 2026US 12,545,599 B2Metso Finland Oy
- 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.
- Froth flotation unit4 Mar 2025US 12,240,001 B2Outotec (Finland) Oy
- Flotation line18 Jun 2024US 12,011,726 B2Metso Finland Oy
- 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.
- Polymer coating for selective separation of hydrophobic particles in aqueous slurry7 Sep 2023US 2023/0278044 A1Cidra Corporate Services Inc.
- Headrace system6 Jul 2023US 2023/0212035 A1Utsunomiya Kogyo Co., Ltd.
- Pre-flotation high efficiency slurry conditioning device for wide-particle-grade flotation4 May 2023US 2023/0138748 A1China University of Mining and Technology
Most cited
By later US patents
- Upflow gas eductor induced air floatation separator54US 4,564,457 AL'eau Claire Systems, Inc. · 1986
- Method and apparatus for processing high-ash coal slurries by flotation, particularly for processing gas coal and open-burning coal which are difficult to float48US 4,477,338 ARuhrkohle Aktiengesellschaft · 1984
- Water clarification method43US 5,407,584 A1995
- Froth flotation apparatus and method39US 4,399,028 AThe Black Clawson Company · 1983
- Apparatus and process for the gas flotation purification of oil-contaminated water38US 4,800,025 APony Industries, Inc. · 1989