B03D 1/26
Air lift machines
B03D1/26 (Air lift machines) appears on 31 US grants and 18 published applications in this corpus.
Search patents in B03D- Granted patents
- 31
- Published applications
- 18
- Assignees
- 27
- Inventors
- 65
- Latest grant
- 16 Aug 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 2 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 3 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 2 | 1 |
| 2017 | 1 | 2 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Apparatus for simultaneous grinding and froth flotation16 Aug 2022US 11,413,622 B2Omya International AG
- Method and apparatus for contacting bubbles and particles in a flotation separation system20 Mar 2018US 9,919,320 B2The University of Newcastle Research Associates Limited
- Method and apparatus for contacting bubbles and particles in a flotation separation system23 May 2017US 9,656,273 B2Newcastle Innovation Limited
- Separation apparatus and processes26 Apr 2016US 9,321,057 B2Savannah State University
- Water decontamination systems29 Mar 2016US 9,295,924 B2Liquid Separation Technologies and Equipment, LLC
- Apparatus for simultaneous grinding and froth flotation2 Nov 2017US 2017/0312759 A1Omya International AG
- Method and apparatus for contacting bubbles and particles in a flotation separation system3 Aug 2017US 2017/0216850 A1Newcastle Innovation Limited
- Separation apparatus and processes13 Oct 2016US 2016/0297689 A1Savannah State University
- Flotation device comprising a fluid distribution element for generating a flow that is directed at the foam collecting unit2 Jan 2014US 2014/0001102 A1Siemens Aktiengesellschaft
- Method and Apparatus for Contacting Bubbles and Particles in a Flotation Separation System26 Dec 2013US 2013/0341252 A1Newcastle Innovation Limited
Most cited
By later US patents
- Aeration/flotation reactor46US 4,834,872 AKFA Juelich · 1989
- Method of separating hydrocarbons from mineral substrates33US 6,576,145 B2Continuum Environmental, Inc. · 2003
- Apparatus for removing suspended oil droplets from water22US 4,198,300 AExxon Production Research Company · 1980
- Hybrid gas flotation separator22US 4,251,361 AConoco Inc. · 1981
- Enclosed flotation device21US 4,162,972 A1979