C02F 3/1263
Sequencing batch reactors [sbr]
Official title: {Sequencing batch reactors [SBR]}
C02F3/1263 (Sequencing batch reactors [sbr]) appears on 246 US grants and 228 published applications in this corpus.
Search patents in C02F- Granted patents
- 246
- Published applications
- 228
- Assignees
- 162
- Inventors
- 620
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 7 | 0 |
| 1989 | 5 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 8 | 0 |
| 1993 | 11 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 0 |
| 2002 | 5 | 2 |
| 2003 | 4 | 8 |
| 2004 | 8 | 4 |
| 2005 | 5 | 4 |
| 2006 | 5 | 6 |
| 2007 | 3 | 7 |
| 2008 | 5 | 10 |
| 2009 | 7 | 7 |
| 2010 | 6 | 8 |
| 2011 | 5 | 5 |
| 2012 | 2 | 8 |
| 2013 | 5 | 17 |
| 2014 | 9 | 14 |
| 2015 | 11 | 15 |
| 2016 | 2 | 9 |
| 2017 | 4 | 9 |
| 2018 | 5 | 10 |
| 2019 | 11 | 9 |
| 2020 | 10 | 11 |
| 2021 | 3 | 12 |
| 2022 | 10 | 15 |
| 2023 | 9 | 14 |
| 2024 | 10 | 16 |
| 2025 | 7 | 5 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device for influent distribution and thickened sludge fermentation to enhance MSBR system6 Oct 2026US 12,753,100 B2Corstar Environmental Equipment Shanghai Ltd
- Method for treating a wastewater effluent in a sequencing batch reactor (SBR) having a constant level and controlled recovery25 Aug 2026US 12,715,799 B2Suez International
- Method and system for pre-treating high strength wastewater7 Jul 2026US 12,673,887 B2
- Wastewater purification apparatus and process for purifying wastewater28 Apr 2026US 12,612,320 B2Invent Umwelt-Und Verfahrenstechnik AG
- Method and apparatus for multi-deselection in wastewater treatment21 Apr 2026US 12,606,472 B2D.C. Water & Sewer Authority
- Microbial Composite Bacteria for Sludge Reduction in Biochemical Systems, Preparation Method Thereof, and Application of Microbial Agent for Sludge Reduction in Biochemical Systems8 Oct 2026US 2026/0308033 A1
- Method and apparatus for multi-deselection in wastewater treatment10 Sep 2026US 2026/0265097 A1D.C. Water & Sewer Authority
- Enhanced activated sludge system for removing per- and polyfluoroalkyl substances (pfas) from a flow of wastewater and/or landfill leachate23 Apr 2026US 2026/0109631 A1
- Waste water treatment system using aerobic granular sludge gravity-driven membrane system20 Nov 2025US 2025/0353765 A1King Abdullah University of Science and Technology
- Method and apparatus for densification of activated sludge18 Sep 2025US 2025/0288924 A1Aqua-Aerobic Systems, Inc.
Most cited
By later US patents
- Treatment of highly colored wastewaters143US 5,302,288 AZimpro Environmental, Inc. · 1994
- Two-stage anaerobic/aerobic treatment process117US 4,919,815 AZimpro/Passavant Inc. · 1990
- Controlling wastewater treatment by monitoring oxygen utilization rates107US 5,989,428 A1999
- Multiple zone batch treatment process102US 5,192,442 AZimpro Passavant Environmental Systems, Inc. · 1993
- Method and system for nitrifying and denitrifying wastewater86US 7,147,778 B1I. Kruger Inc. · 2006