System and method for auto-flocculation of wastewater
US-2023406741-A1 · Dec 21, 2023 · US
use of algae
use of 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 | C02F3/322 |
| Official title | {use of algae} |
| Display label | use of algae |
| Total patents | 87 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 6 |
| 2017 | 6 |
| 2018 | 5 |
| 2019 | 4 |
| 2020 | 10 |
| 2021 | 13 |
| 2022 | 4 |
| 2023 | 9 |
| 2024 | 14 |
| 2025 | 7 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
System and method for cultivation of oxygenic photogranule
US-2023382774-A1 · Nov 30, 2023 · US
Systems and methods for reducing total dissolved solids (tds) in wastewater by an algal biofilm treatment
US-2023348303-A1 · Nov 2, 2023 · US
Systems and methods for treating a wastewater stream
US-2023242429-A1 · Aug 3, 2023 · US
Systems and methods for reducing total dissolved solids (TDS) in wastewater by an algal biofilm treatment
US-11691902-B2 · Jul 4, 2023 · US
Autonomous organic aquatic filtration systems
US-2023034365-A1 · Feb 2, 2023 · US
Biological remediation of groundwater using an algal photobioreactor system
US-11485657-B2 · Nov 1, 2022 · US
Methods for producing treated manure
US-2022315503-A1 · Oct 6, 2022 · US
Method and device for preventing and controlling pollutants in the reuse of reclaimed water in agricultural activity areas with extreme water shortage
US-11352281-B2 · Jun 7, 2022 · US
Method and device for controlling pollutants in basin water resources cycling utilization in agricultural activity areas
US-11261115-B2 · Mar 1, 2022 · US
Method for treatment and resource utilization of acidic organic wastewater
US-2021380452-A1 · Dec 9, 2021 · US
Algal harvesting and water filtration
US-11186507-B1 · Nov 30, 2021 · US
Method and device for controlling pollutants in basin water used for irrigating farmland in extremely water-scarce areas
US-11174184-B2 · Nov 16, 2021 · US
Engineered yeast as a method for bioremediation
US-2021221719-A1 · Jul 22, 2021 · US
Treatment of oil and grease in water using algae
US-11066316-B2 · Jul 20, 2021 · US
Method and device for preventing and controlling pollutants in the reuse of reclaimed water in agricultural activity areas with extreme water shortage
US-2021188677-A1 · Jun 24, 2021 · US
Method and device for controlling pollutants in basin water resources cycling utilization in agricultural activity areas
US-2021179465-A1 · Jun 17, 2021 · US
Biofiltration System for Harvesting Microalgae and Related Methods
US-2021169005-A1 · Jun 10, 2021 · US
Biological remediation of groundwater using an algal photobioreactor system
US-2021130206-A1 · May 6, 2021 · US
Resource treatment system for urine and feces separation and recovery in urine diversion dehydration toilets
US-2021130212-A1 · May 6, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F3/322?
- CPC C02F3/322 is the Cooperative Patent Classification code for “use of algae.”
- How many patents are filed under CPC C02F3/322 (use of algae)?
- Our database includes 87 publications tagged with this CPC code.
- Is patent activity under CPC C02F3/322 growing?
- Publication counts under this code: 14 in 2024 vs 7 in 2025 (latest complete years).