System for treating wastewater using electrochemistry
US-2026049010-A1 · Feb 19, 2026 · US
using magnesium compounds and phosphoric acid for removing ammonia
using magnesium compounds and phosphoric acid for removing ammonia · 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 | C02F1/5254 |
| Official title | {using magnesium compounds and phosphoric acid for removing ammonia} |
| Display label | using magnesium compounds and phosphoric acid for removing ammonia |
| Total patents | 25 |
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 | 1 |
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 6 |
| 2020 | 3 |
| 2021 | 5 |
| 2022 | 2 |
| 2023 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Systems and methods for high-efficiency nutrient removal and recovery from waste streams
US-2025051208-A1 · Feb 13, 2025 · US
Method for recovering N, K, and P from liquid waste stream
US-11577959-B2 · Feb 14, 2023 · US
Removal of ammoniacal nitrogen from landfill leachates
US-11370675-B1 · Jun 28, 2022 · US
Methods of removing polymers from treatment fluids for use in subterranean formations
US-11370676-B2 · Jun 28, 2022 · US
Preparation Method and Application of External Carbon Source by Denitrification from Lake Algae
US-2021363039-A1 · Nov 25, 2021 · US
Methods of removing polymers from treatment fluids for use in subterranean formations
US-2021171370-A1 · Jun 10, 2021 · US
Method and system for optimization of coagulation and/or flocculation in a water treatment process
US-10988392-B2 · Apr 27, 2021 · US
Method for recovering n, k, and p from liquid waste stream
US-2021114879-A1 · Apr 22, 2021 · US
A Method and a System for Providing at Least One Input Parameter of Sludge Dewatering Process of a Wastewater Treatment Plant
US-2021039976-A1 · Feb 11, 2021 · US
Process for removing silica from produced water and other wastewater streams
US-10843946-B2 · Nov 24, 2020 · US
A method and system for optimization of coagulation and/or flocculation in a water treatment process
US-2020223719-A1 · Jul 16, 2020 · US
Recovery of phosphorus compounds from wastewater
US-10633272-B2 · Apr 28, 2020 · US
Water treatment system and power generation facility
US-10399878-B2 · Sep 3, 2019 · US
Process for removing silica from produced water and other wastewater streams
US-2019256388-A1 · Aug 22, 2019 · US
Closed-loop bioregenerative water purification system for the international space station (ISS) and for sustainable mars exploration
US-10336637-B2 · Jul 2, 2019 · US
Closed-loop bioregenerative water purification system for the international space station (iss) and for sustainable mars exploration
US-2019016620-A1 · Jan 17, 2019 · US
Process for producing a phosphorus product from wastewater
US-2019010065-A1 · Jan 10, 2019 · US
Recovery of phosphorus compounds from wastewater
US-2019002321-A1 · Jan 3, 2019 · US
Struvite precipitation and microbial fuel cell for recovery of nutrients and energy from digester effluent
US-2018282189-A1 · Oct 4, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F1/5254?
- CPC C02F1/5254 is the Cooperative Patent Classification code for “using magnesium compounds and phosphoric acid for removing ammonia.”
- How many patents are filed under CPC C02F1/5254 (using magnesium compounds and phosphoric acid for removing ammonia)?
- Our database includes 25 publications tagged with this CPC code.
- Is patent activity under CPC C02F1/5254 growing?
- Publication counts under this code: 1 in 2023 vs 1 in 2025 (latest complete years).