C02F 3/165
Using vertical aeration channels
Official title: {using vertical aeration channels}
C02F3/165 (Using vertical aeration channels) appears on 43 US grants and 14 published applications in this corpus.
Search patents in C02F- Granted patents
- 43
- Published applications
- 14
- Assignees
- 25
- Inventors
- 64
- Latest grant
- 22 Mar 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 1 | 5 |
| 2009 | 1 | 0 |
| 2010 | 3 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 2 |
| 2022 | 3 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Solar-powered aeration device for sludge turnover and planting and method22 Mar 2022US 11,278,010 B2Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery Sciences
- Circulation pump for vertically circulating water in bodies of water using consecutive expanding super air bubbles8 Mar 2022US 11,267,735 B1Kellgren Group, Inc.
- Apparatus for treating wastewater and a system for collecting and treating wastewater combining rainwater drainage15 Feb 2022US 11,247,924 B2
- Submersible aerator and mixing apparatus25 Aug 2020US 10,752,530 B1
- Apparatus and method for removing impurities from water or wastewater5 Nov 2019US 10,463,995 B2Roberts Marketing DE, Inc.
- Circulation Pump for Vertically Circulating Water in Bodies of Water Using Consecutive Expanding Super Air Bubbles10 Mar 2022US 2022/0073389 A1Kellgren Group, Inc.
- Solar-powered aeration device for sludge turnover and planting and method6 May 2021US 2021/0127645 A1Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery Sciences
- Apparatus for treating wastewater and a system for collecting and treating wastewater combining rainwater drainage4 Feb 2021US 2021/0032137 A1
- Apparatus and Method for Removing Impurities from Water or Wastewater5 Apr 2018US 2018/0093231 A1Roberts Marketing DE, Inc.
- Water circulating device installed in a park or lake5 Dec 2013US 2013/0319921 A1Ecoco, Inc.
Most cited
By later US patents
- Mixer/aerator for waste water38US 5,021,154 A1991
- Apparatus for mixing gas and liquid31US 4,540,528 A1985
- Aeration apparatus for pond27US 5,011,372 ANigrelli Systems, Inc. · 1991
- Apparatus for mixing air and liquid26US 4,468,358 A1984
- Method and apparatus for induced-flow circulation and pressurized aeration in a barrier oxidation ditch23US 4,455,232 A1984