Water treatment method and water treatment apparatus
US-2024383788-A1 · Nov 21, 2024 · US
Eliminating or preventing deposits, scale removal, scale prevention (C02F1/042, C02F1/4602, C02F5/00 take precedence)
Eliminating or preventing deposits, scale removal, scale prevention (C02F1/042, C02F1/4602, C02F5/00 take precedence) · 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 | C02F2303/22 |
| Official title | Eliminating or preventing deposits, scale removal, scale prevention (C02F1/042, C02F1/4602, C02F5/00 take precedence) |
| Display label | Eliminating or preventing deposits, scale removal, scale prevention (C02F1/042, C02F1/4602, C02F5/00 take precedence) |
| Total patents | 748 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 52 |
| 2016 | 66 |
| 2017 | 55 |
| 2018 | 65 |
| 2019 | 65 |
| 2020 | 80 |
| 2021 | 75 |
| 2022 | 64 |
| 2023 | 73 |
| 2024 | 71 |
| 2025 | 70 |
| 2026 | 12 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Negative electrostatic filtration apparatus
US-11878310-B2 · Jan 23, 2024 · US
Laundry Washing Machine and Method for Controlling a Laundry Washing Machine
US-2016326683-A1 · Nov 10, 2016 · US
Monitoring hydraulic fracturing
US-9477238-B2 · Oct 25, 2016 · US
Brine mining process
US-2016272513-A1 · Sep 22, 2016 · US
Trimethylolpropane core, phosphonic acid terminated dendrimer and its preparation method
US-9403853-B2 · Aug 2, 2016 · US
Hydrophobically modified polyamine scale inhibitors
US-9365442-B2 · Jun 14, 2016 · US
Water treatment device and water treatment method
US-2016145132-A1 · May 26, 2016 · US
Non-phosphorous containing corrosion inhibitors for aqueous systems
US-2015376799-A1 · Dec 31, 2015 · US
Methods and systems for treating produced water
US-2015376033-A1 · Dec 31, 2015 · US
Aqueous systems having low levels of calcium containing components
US-2015376041-A1 · Dec 31, 2015 · US
Methods for monitoring the formation and transport of an acidizing fluid using opticoanalytical devices
US-9222348-B2 · Dec 29, 2015 · US
Method for improving the percent recovery and water quality in high total hardness water
US-2015360988-A1 · Dec 17, 2015 · US
Water recovery system for use in confined spaces
US-2015353401-A1 · Dec 10, 2015 · US
Shock waves for pipe cleaning
US-2015337630-A1 · Nov 26, 2015 · US
Synergistic interaction of weak cation exchange resin and magnesium oxide
US-9193610-B2 · Nov 24, 2015 · US
Rechargeable electrochemical cells
US-2015329384-A1 · Nov 19, 2015 · US
Alkaline detergent composition containing a carboxylic acid terpolymer for hard water scale control
US-2015329805-A1 · Nov 19, 2015 · US
Cooling process
US-2015330725-A1 · Nov 19, 2015 · US
Media cartridge with adjustable bypass
US-2015321926-A1 · Nov 12, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F2303/22?
- CPC C02F2303/22 is the Cooperative Patent Classification code for “Eliminating or preventing deposits, scale removal, scale prevention (C02F1/042, C02F1/4602, C02F5/00 take precedence).”
- How many patents are filed under CPC C02F2303/22 (Eliminating or preventing deposits, scale removal, scale prevention (C02F1/042, C02F1/4602, C02F5/00 take precedence))?
- Our database includes 748 publications tagged with this CPC code.
- Is patent activity under CPC C02F2303/22 growing?
- Publication counts under this code: 71 in 2024 vs 70 in 2025 (latest complete years).