C02F 7/00
Aeration of stretches of water
C02F7/00 (Aeration of stretches of water) appears on 289 US grants and 251 published applications in this corpus.
Search patents in C02F- Granted patents
- 289
- Published applications
- 251
- Assignees
- 180
- Inventors
- 528
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 7 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 6 | 0 |
| 1989 | 9 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 9 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 9 | 0 |
| 2001 | 8 | 0 |
| 2002 | 8 | 7 |
| 2003 | 3 | 4 |
| 2004 | 5 | 6 |
| 2005 | 0 | 7 |
| 2006 | 6 | 3 |
| 2007 | 6 | 7 |
| 2008 | 3 | 16 |
| 2009 | 6 | 7 |
| 2010 | 12 | 6 |
| 2011 | 8 | 11 |
| 2012 | 6 | 8 |
| 2013 | 5 | 17 |
| 2014 | 6 | 10 |
| 2015 | 6 | 7 |
| 2016 | 12 | 8 |
| 2017 | 11 | 11 |
| 2018 | 7 | 19 |
| 2019 | 10 | 10 |
| 2020 | 15 | 13 |
| 2021 | 9 | 23 |
| 2022 | 7 | 10 |
| 2023 | 12 | 10 |
| 2024 | 9 | 9 |
| 2025 | 4 | 15 |
| 2026 | 5 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Submersible system for production of a stabilized gas flux24 Mar 2026US 12,582,948 B2Infusion Technology, Inc.
- Method and systems for oxygenation of water bodies24 Mar 2026US 12,583,774 B2Gantzer Water, LLC
- Water remediation system for removing contaminants from a water source10 Feb 2026US 12,545,598 B2Accelerated Remediation Technologies
- Aerator10 Feb 2026US 12,545,609 B2Patrick Charles Pty Ltd
- Devices, systems, and methods for floating onboard renewable energy-powered aeration13 Jan 2026US 12,522,529 B2Hawaii Fish Company Inc.
- System and method for methane elimination in septic systems and method to create carbon credits or their equivalent1 Oct 2026US 2026/0296935 A1
- Bubble-fountain-type water circulation device3 Sep 2026US 2026/0257951 A1C&C Solution Co., Ltd
- Floating water circulator16 Jul 2026US 2026/0200781 A1
- Devices, systems, and methods for floating onboard renewable energy-powered aeration23 Apr 2026US 2026/0109633 A1Hawaii Fish Company Inc.
- Water purification system and method for industrial litopenaeus vannamei aquaculture26 Mar 2026US 2026/0083104 A1Tongwei Agricultural Development Co., Ltd.
Most cited
By later US patents
- Microbubbles of oxygen83US 6,689,262 B2Aqua Innovation, Inc. · 2004
- Water aeration apparatus72US 4,702,830 AKaiyo Kogyo Kabushiki Kaisha · 1987
- Method and apparatus for oxygenating water71US 4,749,493 A1988
- Method of supplying air masses and producing jets of water68US 4,752,421 AKaiyo Kogyo Kabushiki Kaisha · 1988
- Treating means for bodies of water66US 4,308,138 A1981