B01F 23/231154
The bubbling devices being provided with ballast to keep them floating under
Official title: {the bubbling devices being provided with ballast to keep them floating under the surface, i.e. when the bubbling devices are lighter than the liquid}
B01F23/231154 (The bubbling devices being provided with ballast to keep them floating under) appears on 20 US grants and 17 published applications in this corpus.
Search patents in B01F- Granted patents
- 20
- Published applications
- 17
- Assignees
- 11
- Inventors
- 36
- Latest grant
- 16 Nov 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 1 |
| 2011 | 3 | 4 |
| 2012 | 2 | 0 |
| 2013 | 1 | 0 |
| 2014 | 2 | 0 |
| 2015 | 1 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 2 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Water aeration system with floating diffuser16 Nov 2021US 11,173,457 B2Linne Industries, LLC
- Water aeration system with floating diffuser24 Nov 2020US 10,843,140 B2Linne Industries, LLC
- Method and apparatus for the treatment of water with a gas or nutrient infused liquid11 Oct 2016US 9,463,991 B2
- Liquid aeration device8 Sep 2015US 9,126,850 B1Aero-Stream, LLC
- Buoyant aerator array with remote air supply3 Jun 2014US 8,740,194 B1
- Parrellel tubular aerator11 Sep 2025US 2025/0281887 A1
- Water aeration system with floating diffuser24 Dec 2020US 2020/0398232 A1Linne Industries, LLC
- Water aeration system with floating diffuser9 Jul 2020US 2020/0215500 A1Linne Industries, LLC
- Method and apparatus for releasing gas6 Dec 2018US 2018/0345231 A1The New Zealand Institute for Plant and Food Reasearch Limited
- Method and Apparatus for the Treatment of Water with a Gas or Nutrient Infused Liquid6 Aug 2015US 2015/0218023 A1
Most cited
By later US patents
- Pluri-tubular aerator70US 4,911,838 AKabushiki Kobe Seiko Sho · 1990
- Solar activated water aeration station57US 4,906,359 A1990
- Device for injecting a gas into a liquid37US 4,215,082 ASociete Anonyme dete: Alsthom-Atlantique · 1980
- Air supply apparatus for pond fisheries18US 5,595,691 A1997
- Multistage water purification apparatus15US 4,436,675 AKaiyo Kogyo Kabushiki Kaisha · 1984