C02F 3/303
Characterised by the nitrification
Official title: {characterised by the nitrification}
C02F3/303 (Characterised by the nitrification) appears on 87 US grants and 138 published applications in this corpus.
Search patents in C02F- Granted patents
- 87
- Published applications
- 138
- Assignees
- 96
- Inventors
- 370
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 2 | 1 |
| 2011 | 2 | 2 |
| 2012 | 0 | 3 |
| 2013 | 2 | 5 |
| 2014 | 1 | 9 |
| 2015 | 3 | 11 |
| 2016 | 5 | 15 |
| 2017 | 4 | 10 |
| 2018 | 7 | 10 |
| 2019 | 11 | 5 |
| 2020 | 10 | 15 |
| 2021 | 5 | 11 |
| 2022 | 11 | 7 |
| 2023 | 6 | 8 |
| 2024 | 4 | 11 |
| 2025 | 9 | 5 |
| 2026 | 5 | 9 |
By publication year. 2026 runs to 8 Oct.
Recent patents
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- 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
- System and method of generating hydrogen gas24 Feb 2026US 12,559,401 B2Rtx Bbn Technologies, Inc.
- Method and apparatus for treating wastewater3 Sep 2026US 2026/0257952 A1Samsung E&A Co., Ltd.
- Rapid granular sludge cultivation device and method for continuous flow anaerobic ammonium oxidation process30 Jul 2026US 2026/0217581 A1Beijing Drainage Group Co., Ltd
- Wastewater treatment devices, systems, and methods16 Jul 2026US 2026/0200778 A1University of Washington
- Method for removal of nitrate from wastewater effluent30 Apr 2026US 2026/0116800 A1
- Systems and methods for wastewater treatment16 Apr 2026US 2026/0103415 A1Advanced Drainage Systems, Inc.
Most cited
By later US patents
- Apparatus and method of separating23US 7,785,479 B12010
- Reduction and control of pH and soluble CO2 for optimal nitrification of wastewater8US 8,545,700 B1University of South Florida · 2013
- Method and apparatus for maximizing nitrogen removal from wastewater5US 9,469,558 B2D.C. Water & Sewer Authority · 2016
- Method for improving quality of aquaculture pond water5US 9,908,799 B2NCH Corporation · 2018
- System and process for removing nitrogen compounds and odors from wastewater and wastewater treatment system4US 9,272,931 B22016