Microalgae culturing pond-constructed wetland coupled system and method for advanced sewage purification
US-12304847-B2 · May 20, 2025 · US
characterised by the animals or plants used, e.g. algae
characterised by the animals or plants used, e.g. algae · 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 | C02F3/32 |
| Official title | characterised by the animals or plants used, e.g. algae |
| Display label | characterised by the animals or plants used, e.g. algae |
| Total patents | 67 |
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 | 3 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 16 |
| 2022 | 9 |
| 2023 | 7 |
| 2024 | 9 |
| 2025 | 7 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Biochar-enhanced grass blanket for remediating contaminated sediment and preparation method thereof, and method for remediating contaminated sediment
US-2025012028-A1 · Jan 9, 2025 · US
System and method for treating nitrate nitrogen sewage by constructed wetland
US-2024279097-A1 · Aug 22, 2024 · US
Integrated riparian system for on-site treatment of river/lake silt and application thereof
US-12030798-B2 · Jul 9, 2024 · US
Ecological slope protection with efficient water purification function and ecological improvment method
US-12012711-B2 · Jun 18, 2024 · US
Integrated device and treatment method for synchronous ecological treatment of domestic sewage and sludge
US-12012348-B2 · Jun 18, 2024 · US
Microalgae culturing pond-constructed wetland coupled system and method for advanced sewage purification
US-2024182337-A1 · Jun 6, 2024 · US
Resource-circulation-type and eco-friendly livestock manure treatment method using algal biomass, and system for producing algal biomass used therein
US-2024158273-A1 · May 16, 2024 · US
Porous biochar for improving severe pollution and preparation method therefor
US-2024140843-A1 · May 2, 2024 · US
Method and device for treating cyanobacteria in water area based on biological competition principle
US-11933010-B2 · Mar 19, 2024 · US
Stormwater biofiltration system and method
US-11927007-B2 · Mar 12, 2024 · US
Methods for water environment multi-interface governance and restoration in rivers and lakes
US-11802056-B2 · Oct 31, 2023 · US
Integrated Device and Treatment Method for Synchronous Ecological Treatment of Domestic Sewage and Sludge
US-2023322601-A1 · Oct 12, 2023 · US
Applications of humic acid in improving phytoremediation efficiency of heavy metals in waterbody
US-2023295012-A1 · Sep 21, 2023 · US
Method for controlling growth of blue algae in water area by utilizing eucalyptus
US-11760671-B2 · Sep 19, 2023 · US
Systems and methods for stormwater management
US-2023264977-A1 · Aug 24, 2023 · US
Constructed wetland system enhanced by immobilized laccase
US-2023048966-A1 · Feb 16, 2023 · US
Ecological system for deep water environment restoration and construction method thereof
US-2023002253-A1 · Jan 5, 2023 · US
Rural landscape-type nitrogen and phosphorus ecological interception ditch system and farmland drainage nitrogen and phosphorus interception method using the same
US-11352279-B2 · Jun 7, 2022 · US
Method and device for controlling pollutants in metal mine water resources cycling utilization
US-11332400-B2 · May 17, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F3/32?
- CPC C02F3/32 is the Cooperative Patent Classification code for “characterised by the animals or plants used, e.g. algae.”
- How many patents are filed under CPC C02F3/32 (characterised by the animals or plants used, e.g. algae)?
- Our database includes 67 publications tagged with this CPC code.
- Is patent activity under CPC C02F3/32 growing?
- Publication counts under this code: 9 in 2024 vs 7 in 2025 (latest complete years).