Water treatment method and water treatment apparatus
US-2024383788-A1 · Nov 21, 2024 · US
Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents (softening using ion-exchange C02F1/42)
Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents (softening using ion-exchange C02F1/42) · 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 | C02F5/00 |
| Official title | Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents (softening using ion-exchange C02F1/42) |
| Display label | Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents (softening using ion-exchange C02F1/42) |
| Total patents | 187 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 15 |
| 2017 | 18 |
| 2018 | 11 |
| 2019 | 25 |
| 2020 | 23 |
| 2021 | 14 |
| 2022 | 13 |
| 2023 | 14 |
| 2024 | 14 |
| 2025 | 15 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of tracing chemical quantities using encapsulated fluorescent dyes
US-10139385-B2 · Nov 27, 2018 · US
Deionization filter device and water treatment device comprising deionization filter device
US-2018326356-A1 · Nov 15, 2018 · US
Method and System for Treating Brine Waste Water
US-2018148350-A1 · May 31, 2018 · US
Monitored release solid feed system
US-9938161-B2 · Apr 10, 2018 · US
Synergistic interaction of weak cation exchange resin and magnesium oxide
US-9896364-B2 · Feb 20, 2018 · US
Methods and systems for treating high temperature produced water
US-2018028978-A1 · Feb 1, 2018 · US
Capacitive de-ionization mineral reduction system and method
US-2018022622-A1 · Jan 25, 2018 · US
Water softening apparatus, dishwasher having the same and control method thereof
US-9861253-B2 · Jan 9, 2018 · US
Fluorescent water treatment compounds and method of use
US-2017355628-A1 · Dec 14, 2017 · US
Method for Relieving Corrosive Environment of Boiling Water Reactor, Nuclear Power Plant, and Method for Injecting Noble Metal Which Is Carried out in Nuclear Power Plant
US-2017287573-A1 · Oct 5, 2017 · US
Rheology modifying agents for slurries
US-2017218169-A1 · Aug 3, 2017 · US
Method for preventing scale formation
US-2017198435-A1 · Jul 13, 2017 · US
Rheology modifying agents for slurries
US-9656914-B2 · May 23, 2017 · US
Water conditioning systems having diversion devices
US-2017137303-A1 · May 18, 2017 · US
Beverage preparation apparatus
US-2017135515-A1 · May 18, 2017 · US
Fluid conditioning systems having caps with filter cartridge sealing and removal devices and/or locking devices
US-2017136412-A1 · May 18, 2017 · US
Water conditioning systems
US-2017137304-A1 · May 18, 2017 · US
Method and device for purifying water
US-9643864-B2 · May 9, 2017 · US
Method for treating organic-matter-containing water
US-9598297-B2 · Mar 21, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F5/00?
- CPC C02F5/00 is the Cooperative Patent Classification code for “Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents (softening using ion-exchange C02F1/42).”
- How many patents are filed under CPC C02F5/00 (Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents (softening using ion-exchange C02F1/42))?
- Our database includes 187 publications tagged with this CPC code.
- Is patent activity under CPC C02F5/00 growing?
- Publication counts under this code: 14 in 2024 vs 15 in 2025 (latest complete years).