Granular sludge reactor system comprising an external separator
US-12509379-B2 · Dec 30, 2025 · US
with biogas recycling
with biogas recycling · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C02F3/2893 |
| Official title | {with biogas recycling} |
| Display label | with biogas recycling |
| Total patents | 34 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 7 |
| 2022 | 3 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of filtering tannery wastewater and a tannery wastewater treatment system
US-2025368541-A1 · Dec 4, 2025 · US
System and method for treatment of animal manure containing wastewater
US-12384707-B2 · Aug 12, 2025 · US
Lignocellulosic biomass treatment methods and systems for production of biofuels and biochemicals
US-12116642-B2 · Oct 15, 2024 · US
Integration of fermentation and gasification
US-11772994-B2 · Oct 3, 2023 · US
Anaerobic digester with self-delivery of accumulated solids
US-2023192518-A1 · Jun 22, 2023 · US
Granular sludge reactor system comprising an external separator
US-11613483-B2 · Mar 28, 2023 · US
Granular sludge reactor system comprising an external separator
US-2023072206-A1 · Mar 9, 2023 · US
Device and method for sulphur cycle-based advanced denitrification of waste water coupling autotrophic denitrification and heterotrophic denitrification
US-11434159-B2 · Sep 6, 2022 · US
Method of producing biochar from sludge
US-11332401-B2 · May 17, 2022 · US
Simultaneous phase operated anaerobic sequential batch reactor
US-11267736-B2 · Mar 8, 2022 · US
Integration of fermentation and gasification
US-2021371312-A1 · Dec 2, 2021 · US
Device and method for sulphur cycle-based advanced denitrification of waste water coupling autotrophic denitrification and heterotrophic denitrification
US-2021317025-A1 · Oct 14, 2021 · US
Lignocellulosic biomass treatment methods and systems for production of biofuels and biochemicals
US-2021269889-A1 · Sep 2, 2021 · US
Integration of fermentation and gasification
US-11097967-B2 · Aug 24, 2021 · US
Method and device for treating high-calcium wastewater by calcification blocking
US-10981816-B1 · Apr 20, 2021 · US
Simultaneous phase operated anaerobic sequential batch reactor
US-2021087087-A1 · Mar 25, 2021 · US
Regulating a microenvironment of anaerobic granular sludge to promote anaerobic digestion and delay calcification
US-2021032139-A1 · Feb 4, 2021 · US
Integration of fermentation and gasification
US-2020156973-A1 · May 21, 2020 · US
Membrane aerated anaerobic granular sludge reactor with efficient nitrogen removal and greenhouse gas mitigation
US-10604430-B2 · Mar 31, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F3/2893?
- CPC C02F3/2893 is the Cooperative Patent Classification code for “with biogas recycling.”
- How many patents are filed under CPC C02F3/2893 (with biogas recycling)?
- Our database includes 34 publications tagged with this CPC code.
- Is patent activity under CPC C02F3/2893 growing?
- Publication counts under this code: 1 in 2024 vs 3 in 2025 (latest complete years).