Home toilet waste treatment system comprising bio-treatment device and combustion device, and method for treating toilet waste by using same
US-12590022-B2 · Mar 31, 2026 · US
Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates
Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates · 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 | C02F3/1215 |
| Official title | {Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates} |
| Display label | Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates |
| Total patents | 58 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 6 |
| 2018 | 1 |
| 2019 | 5 |
| 2020 | 8 |
| 2021 | 5 |
| 2022 | 15 |
| 2023 | 4 |
| 2024 | 6 |
| 2025 | 2 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Straight-line sewage treatment system for enhanced treatment of low C/N domestic sewage
US-12590019-B2 · Mar 31, 2026 · US
Method for treating wastewater
US-12421145-B2 · Sep 23, 2025 · US
Method for treating high-concentration fermentation by-products generated in amino acid fermentation process
US-2025230082-A1 · Jul 17, 2025 · US
Method for removing dissolved organic compounds from wastewater
US-12172913-B2 · Dec 24, 2024 · US
Method and device for removing organic micropollutants (OMPs) in water
US-12091342-B2 · Sep 17, 2024 · US
Phosphorus control for waste streams from glyphosate manufacturing processes
US-11964892-B2 · Apr 23, 2024 · US
Straight-line sewage treatment system for enhanced treatment of low c/n domestic sewage
US-2024092664-A1 · Mar 21, 2024 · US
Apparatus and method for treating waste water
US-2024051859-A1 · Feb 15, 2024 · US
System for cleaning wastewater
US-11866355-B2 · Jan 9, 2024 · US
Semiconductor process wastewater treatment system and semiconductor process wastewater treatment method using the same
US-11760674-B2 · Sep 19, 2023 · US
Home toilet waste treatment system comprising bio-treatment device and combustion device, and method for treating toilet waste by using same
US-2023212049-A1 · Jul 6, 2023 · US
Processes for treatment of wastewater
US-11577979-B1 · Feb 14, 2023 · US
Processes for treatment of wastewater
US-2023034944-A1 · Feb 2, 2023 · US
Method for treating wastewater
US-2022402790-A1 · Dec 22, 2022 · US
System for cleaning wastewater
US-2022356094-A1 · Nov 10, 2022 · US
Nano iron biological coupling device for organic wastewater and its process
US-11479488-B2 · Oct 25, 2022 · US
Method and device for removing organic micropollutants (omps) in water
US-2022306503-A1 · Sep 29, 2022 · US
Combination of captivator and fixed film bioreactor solutions
US-11447408-B2 · Sep 20, 2022 · US
Method of treating sludge
US-11440828-B2 · Sep 13, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F3/1215?
- CPC C02F3/1215 is the Cooperative Patent Classification code for “Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates.”
- How many patents are filed under CPC C02F3/1215 (Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates)?
- Our database includes 58 publications tagged with this CPC code.
- Is patent activity under CPC C02F3/1215 growing?
- Publication counts under this code: 6 in 2024 vs 2 in 2025 (latest complete years).