C02F 3/301
Aerobic and anaerobic treatment in the same reactor
Official title: {Aerobic and anaerobic treatment in the same reactor}
C02F3/301 (Aerobic and anaerobic treatment in the same reactor) appears on 410 US grants and 385 published applications in this corpus.
Search patents in C02F- Granted patents
- 410
- Published applications
- 385
- Assignees
- 280
- Inventors
- 949
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 7 | 0 |
| 1985 | 6 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 5 | 0 |
| 1992 | 0 | 0 |
| 1993 | 7 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 8 | 0 |
| 1998 | 8 | 0 |
| 1999 | 9 | 0 |
| 2000 | 9 | 0 |
| 2001 | 7 | 4 |
| 2002 | 10 | 6 |
| 2003 | 9 | 10 |
| 2004 | 9 | 8 |
| 2005 | 4 | 13 |
| 2006 | 11 | 18 |
| 2007 | 14 | 13 |
| 2008 | 12 | 16 |
| 2009 | 5 | 11 |
| 2010 | 14 | 20 |
| 2011 | 10 | 7 |
| 2012 | 11 | 16 |
| 2013 | 11 | 15 |
| 2014 | 8 | 17 |
| 2015 | 14 | 26 |
| 2016 | 12 | 20 |
| 2017 | 22 | 15 |
| 2018 | 18 | 21 |
| 2019 | 11 | 9 |
| 2020 | 13 | 20 |
| 2021 | 11 | 23 |
| 2022 | 16 | 16 |
| 2023 | 15 | 15 |
| 2024 | 18 | 29 |
| 2025 | 11 | 10 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Simultaneous nitritation and denitritation system21 Jul 2026US 12,686,625 B2Nexom
- Systems and methods for creating and segmenting treatment processes12 May 2026US 12,623,938 B2Enviromix, Inc.
- Integrated dual circulation oxidization ditch apparatus for municipal wastewater and treatment method3 Mar 2026US 12,565,435 B2Guizhou University
- Method for phosphorus removal and recovery using organic carbon source of urban sewage30 Dec 2025US 12,509,380 B2Suzhou University of Science and Technology
- Controlled flow baffles for a treatment tank1 Oct 2026US 2026/0296938 A1Parkson Corporation
- Systems and methods for creating and segmenting treatment processes10 Sep 2026US 2026/0265095 A1Enviromix, Inc.
- Method and apparatus for treating wastewater3 Sep 2026US 2026/0257952 A1Samsung E&A Co., Ltd.
- Adaptive critic control algorithm integrating knowledge transfer for wastewater treatment process27 Aug 2026US 2026/0250168 A1Beijing University of Technology
- Aerobic Bacterial Generator23 Jul 2026US 2026/0209093 A1Sludgehammer Group, Ltd.
Most cited
By later US patents
- Method and apparatus for waste digestion using multiple biological processes124US 5,626,755 AMicronair, Inc. · 1997
- Controlling wastewater treatment by monitoring oxygen utilization rates107US 5,989,428 A1999
- Method and system for nitrifying and denitrifying wastewater86US 7,147,778 B1I. Kruger Inc. · 2006
- Digester and process for converting organic matter to methane and fertilizer79US 4,100,023 A1978
- Wastewater treatment process with cooperating velocity equalization, aeration and decanting means78US 5,186,821 A1993