Equipment for in-situ restoration of sediment
US-12356908-B2 · Jul 15, 2025 · US
Biological treatment
Biological treatment · 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 | C02F11/02 |
| Official title | Biological treatment |
| Display label | Biological treatment |
| Total patents | 69 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 4 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 3 |
| 2020 | 6 |
| 2021 | 10 |
| 2022 | 7 |
| 2023 | 5 |
| 2024 | 8 |
| 2025 | 13 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for controlling heavy metal scouring pollution in mines by using humified product
US-12337363-B2 · Jun 24, 2025 · US
Continuous Flow Reactor for Conversion of Wastewater to Biohydrogen Using Activated Sludge and Microalgae
US-2025109414-A1 · Apr 3, 2025 · US
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
Method for treating wastewater or sludge
US-12157689-B2 · Dec 3, 2024 · US
Method of reducing and controlling hazardous substance in process of high-value biological conversion of urban organic waste
US-12122696-B2 · Oct 22, 2024 · US
Integrated riparian system for on-site treatment of river/lake silt and application thereof
US-12030798-B2 · Jul 9, 2024 · US
Sulfamethoxazole-degrading pseudomonas silesiensis strain, and application thereof
US-2024182848-A1 · Jun 6, 2024 · US
Immobilized microbial agent for in situ restoration of contaminated sediments, preparation method and application thereof
US-11993527-B2 · May 28, 2024 · US
Waste separating system, activated sludge treatment system, waste separating method, and activated sludge treatment method
US-2024025779-A1 · Jan 25, 2024 · US
Conductive materials to drive bacterial carbon dioxide fixation
US-11881606-B2 · Jan 23, 2024 · US
Driving Bacterial Carbon Dioxide Fixation with Conductive Materials
US-2024006643-A1 · Jan 4, 2024 · US
Feammox activity in bioelectrochemical reactors
US-11807563-B2 · Nov 7, 2023 · US
Resource treatment system for urine and feces separation and recovery in urine diversion dehydration toilets
US-11795089-B2 · Oct 24, 2023 · US
Apparatus and method for synchronously treating sewage and sludge through combination of step-feed partial nitrification and anaerobic ammonia oxidation
US-2023071009-A1 · Mar 9, 2023 · US
Bacterium for degrading sludge, bacterium degrading microorganism, microbial preparation and method and device for degrading sludge
US-2023042056-A1 · Feb 9, 2023 · US
Method for controlling heavy metal scouring pollution in mines by using humified product
US-2023036097-A1 · Feb 2, 2023 · US
Method of reducing and controlling hazardous substance in process of high-value biological conversion of urban organic waste
US-2022234932-A1 · Jul 28, 2022 · US
Method for treating wastewater or sludge
US-2022194834-A1 · Jun 23, 2022 · US
Integrated Riparian System for On-site Treatment of River/lake Silt and Application Thereof
US-2022073392-A1 · Mar 10, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F11/02?
- CPC C02F11/02 is the Cooperative Patent Classification code for “Biological treatment.”
- How many patents are filed under CPC C02F11/02 (Biological treatment)?
- Our database includes 69 publications tagged with this CPC code.
- Is patent activity under CPC C02F11/02 growing?
- Publication counts under this code: 8 in 2024 vs 13 in 2025 (latest complete years).