Method for treating wastewater or sludge
US-12157689-B2 · Dec 3, 2024 · US
Alkalinity
Alkalinity · 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 | C02F2209/07 |
| Official title | Alkalinity |
| Display label | Alkalinity |
| Total patents | 83 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 4 |
| 2017 | 5 |
| 2018 | 5 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 9 |
| 2022 | 8 |
| 2023 | 13 |
| 2024 | 15 |
| 2025 | 11 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Enhanced inorganic coagulants for wastewater treatment
US-2024368008-A1 · Nov 7, 2024 · US
Enhanced inorganic coagulants for wastewater treatment
US-12103871-B2 · Oct 1, 2024 · US
Systems and methods for carbon sequestration using enhanced weathering
US-12083475-B2 · Sep 10, 2024 · US
Pool chemical dispensing system
US-2024217843-A1 · Jul 4, 2024 · US
Datacenter cooling fluid quality analysis and mitigation
US-11991865-B2 · May 21, 2024 · US
Systems and methods for carbon sequestration using enhanced weathering
US-11938445-B2 · Mar 26, 2024 · US
Water treatment method, control apparatus, and water treatment system
US-2023391645-A1 · Dec 7, 2023 · US
Process for treating frac flowback and produced water including naturally occurring radioactive material
US-11834358-B2 · Dec 5, 2023 · US
Systems and Methods for Carbon Sequestration Using Enhanced Weathering
US-2023347279-A1 · Nov 2, 2023 · US
Chemical controller system and method
US-2023341878-A1 · Oct 26, 2023 · US
Methods for online control of a chemical treatment solution using scale saturation indices
US-11780742-B2 · Oct 10, 2023 · US
Systems and Methods for Carbon Sequestration Using Enhanced Weathering
US-2023312374-A1 · Oct 5, 2023 · US
Systems and Methods for Carbon Sequestration Using Enhanced Weathering
US-2023302404-A1 · Sep 28, 2023 · US
Plant operation support system and plant operation support method
US-11763243-B2 · Sep 19, 2023 · US
Multi parameter swimming pool fluid analysis and regulating method and device
US-2023258013-A1 · Aug 17, 2023 · US
Chemical controller system and method
US-11687103-B2 · Jun 27, 2023 · US
Data-driven recirculating aquaculture system
US-2023166993-A1 · Jun 1, 2023 · US
Multi parameter swimming pool fluid analysis and regulating method and device
US-11619059-B2 · Apr 4, 2023 · US
System and a method for changing color of pool lights
US-2023042259-A1 · Feb 9, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F2209/07?
- CPC C02F2209/07 is the Cooperative Patent Classification code for “Alkalinity.”
- How many patents are filed under CPC C02F2209/07 (Alkalinity)?
- Our database includes 83 publications tagged with this CPC code.
- Is patent activity under CPC C02F2209/07 growing?
- Publication counts under this code: 15 in 2024 vs 11 in 2025 (latest complete years).