C02F 3/006
Regulation methods for biological treatment
Official title: {Regulation methods for biological treatment}
C02F3/006 (Regulation methods for biological treatment) appears on 899 US grants and 931 published applications in this corpus.
Search patents in C02F- Granted patents
- 899
- Published applications
- 931
- Assignees
- 592
- Inventors
- 2,222
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 2 | 0 |
| 1978 | 8 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 9 | 0 |
| 1982 | 8 | 0 |
| 1983 | 3 | 0 |
| 1984 | 7 | 0 |
| 1985 | 4 | 0 |
| 1986 | 8 | 0 |
| 1987 | 10 | 0 |
| 1988 | 6 | 0 |
| 1989 | 9 | 0 |
| 1990 | 10 | 0 |
| 1991 | 10 | 0 |
| 1992 | 13 | 0 |
| 1993 | 17 | 0 |
| 1994 | 14 | 0 |
| 1995 | 13 | 0 |
| 1996 | 22 | 0 |
| 1997 | 17 | 0 |
| 1998 | 12 | 0 |
| 1999 | 14 | 0 |
| 2000 | 13 | 0 |
| 2001 | 16 | 1 |
| 2002 | 16 | 12 |
| 2003 | 16 | 16 |
| 2004 | 16 | 16 |
| 2005 | 9 | 14 |
| 2006 | 10 | 21 |
| 2007 | 20 | 18 |
| 2008 | 13 | 27 |
| 2009 | 14 | 12 |
| 2010 | 16 | 36 |
| 2011 | 14 | 29 |
| 2012 | 23 | 37 |
| 2013 | 25 | 45 |
| 2014 | 27 | 66 |
| 2015 | 22 | 47 |
| 2016 | 31 | 44 |
| 2017 | 32 | 54 |
| 2018 | 36 | 47 |
| 2019 | 49 | 44 |
| 2020 | 34 | 63 |
| 2021 | 45 | 56 |
| 2022 | 39 | 48 |
| 2023 | 38 | 51 |
| 2024 | 34 | 56 |
| 2025 | 40 | 45 |
| 2026 | 21 | 26 |
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
- Aerated biological filtration process for water treatment with a view to reducing the nitrogen content (NGL) of said water with reduction of carbon-source and aeration requirements22 Sep 2026US 12,741,895 B2Veolia Water Solutions & Technologies Support
- Method and installation for controlled microbiome shift for biomass densification in a biological treatment of a raw influent8 Sep 2026US 12,729,143 B2Newport Corporation
- Method for realizing advanced nitrogen removal of domestic sewage via two stage partial nitrification-anammox coupled with sulfur autotrophic denitrification25 Aug 2026US 12,715,800 B2
- Anoxic bioreactor treatment followed by pH adjusted peroxide/iron treatment for enhanced, efficient selenium removal in wastewaters25 Aug 2026US 12,715,802 B2Evoqua Water Technologies LLC
- Two-sludge water reuse process8 Oct 2026US 2026/0308030 A1
- Water treatment method and water treatment apparatus1 Oct 2026US 2026/0296934 A1Organo Corporation
- Methods for curtailing biogenic methane emissions using pyrogenic carbon17 Sep 2026US 2026/0274722 A1University of Delaware
- Process and system for simultaneous nitrification and denitrification17 Sep 2026US 2026/0274723 A1Fluence Water Products and Innovation Ltd
- Systems and methods for creating and segmenting treatment processes10 Sep 2026US 2026/0265095 A1Enviromix, Inc.
Most cited
By later US patents
- Thermophilic aerobic waste treatment system162US 5,656,155 AIP Holding Company · 1997
- Environmental control for biological nutrient removal in water/wastewater treatment129US 5,733,456 A1998
- 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
- Controlled denitrification process and system98US 5,482,630 ABoard of Regents, The University of Texas System · 1996