C02F 3/2826
Using anaerobic filters
Official title: {using anaerobic filters}
C02F3/2826 (Using anaerobic filters) appears on 43 US grants and 71 published applications in this corpus.
Search patents in C02F- Granted patents
- 43
- Published applications
- 71
- Assignees
- 41
- Inventors
- 147
- Latest grant
- 12 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 2 |
| 2013 | 1 | 6 |
| 2014 | 6 | 6 |
| 2015 | 1 | 7 |
| 2016 | 0 | 10 |
| 2017 | 7 | 6 |
| 2018 | 8 | 7 |
| 2019 | 4 | 6 |
| 2020 | 5 | 5 |
| 2021 | 3 | 6 |
| 2022 | 2 | 1 |
| 2023 | 2 | 2 |
| 2024 | 2 | 1 |
| 2025 | 2 | 2 |
| 2026 | 0 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
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- Wastewater treatment system1 Apr 2025US 12,264,091 B1Holm Environmental Energy Resources LLC
- Processing apparatus for treating acid mine wastewater using activated carbon-loaded microorganism29 Oct 2024US 12,129,193 B2Nanjing Institute of Environmental Sciences, MEE
- Continuous, approximately real-time residential wastewater treatment system and apparatus13 Feb 2024US 11,897,802 B2
- Denitrification of water using bacteria24 Oct 2023US 11,795,084 B2NuQuatic, LLC
- Waste Water Treatment by the Cleanbox Module6 Aug 2026US 2026/0225930 A1
- Biogas production device including conductive support-based dynamic module and biogas production method using same device13 Feb 2025US 2025/0051205 A1Industry-Academic Cooperation Foundation, Yonsei University
- Buoyant permeable reactive barrier6 Feb 2025US 2025/0042786 A1
- Processing apparatus for treating acid mine wastewater using activated carbon-loaded microorganism26 Sep 2024US 2024/0317620 A1Nanjing Institute of Environmental Sciences, MEE
- Side Stream Treatment for Overflow16 Nov 2023US 2023/0365447 A1Evoqua Water Technologies LLC
Most cited
By later US patents
- Fluid conduit with layered and partial covering material thereon4US 8,342,212 B2Presby Patent Trust · 2013
- Treatment of municipal wastewater with anaerobic digestion4US 9,181,120 B2Anaergia Inc. · 2015
- Structures for the reduction of water impurities and methods for the deployment thereof2US 10,118,847 B22018
- Fluid conduit with layered and partial covering material thereon2US 8,815,094 B2Presby Patent Trust · 2014
- Downflow denitrification system2US 9,969,635 B2Infilco Degremont Inc. · 2018