Compositions and methods for controlling sludge bed properties and improving lime softening process efficiency
US-2026049011-A1 · Feb 19, 2026 · US
Hot-water softening devices
Hot-water softening devices · 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 | C02F5/025 |
| Official title | {Hot-water softening devices} |
| Display label | Hot-water softening devices |
| Total patents | 26 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 4 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 7 |
| 2020 | 3 |
| 2021 | 4 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods of seawater softening for desalination and mineral extraction
US-2024166543-A1 · May 23, 2024 · US
Treatment of OTSG blowdown
US-11719082-B2 · Aug 8, 2023 · US
Treatment of otsg blowdown
US-2022074292-A1 · Mar 10, 2022 · US
Treatment of OTSG blowdown
US-11199078-B2 · Dec 14, 2021 · US
Coagulant blend in SAGD water treatment
US-11034597-B2 · Jun 15, 2021 · US
Methods and systems for treating high temperature produced water
US-10906001-B2 · Feb 2, 2021 · US
Method for the desalination of supersaturated hot water
US-10899637-B2 · Jan 26, 2021 · US
Process for removing silica from produced water and other wastewater streams
US-10843946-B2 · Nov 24, 2020 · US
Descaling hot-beverage producing machines
US-10806295-B2 · Oct 20, 2020 · US
Apparatus for evaporative concentration of water to be treated, which uses hot lime softening, and method for evaporative concentration of water using the same
US-10730776-B2 · Aug 4, 2020 · US
Monitoring and control of unit operations for generating steam from produced water
US-10501353-B2 · Dec 10, 2019 · US
Apparatus for evaporative concentration of water to be treated, which uses hot lime softening, and method for evaporative concentration of water using the same
US-2019292083-A1 · Sep 26, 2019 · US
Process for removing silica from produced water and other wastewater streams
US-2019256388-A1 · Aug 22, 2019 · US
Methods for treating produced water to remove boron and ammonia
US-2019169057-A1 · Jun 6, 2019 · US
Apparatus for evaporative concentration of water to be treated, which uses hot lime softening, and method for evaporative concentration of water using the same
US-10294137-B2 · May 21, 2019 · US
Methods and systems for treating produced water
US-10287201-B2 · May 14, 2019 · US
Coagulant Blend In SAGD Water Treatment
US-2019084848-A1 · Mar 21, 2019 · US
Degasser and method of stripping gas from a liquid
US-9889391-B2 · Feb 13, 2018 · US
Methods and systems for treating high temperature produced water
US-2018028978-A1 · Feb 1, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F5/025?
- CPC C02F5/025 is the Cooperative Patent Classification code for “Hot-water softening devices.”
- How many patents are filed under CPC C02F5/025 (Hot-water softening devices)?
- Our database includes 26 publications tagged with this CPC code.
- Is patent activity under CPC C02F5/025 growing?
- Publication counts under this code: 1 in 2023 vs 1 in 2024 (latest complete years).