Water quality analysis device
US-10458968-B2 · Oct 29, 2019 · US
by removing specified dissolved compounds (using ion-exchange C02F1/42; softening water C02F5/00)
by removing specified dissolved compounds (using ion-exchange C02F1/42; softening water C02F5/00) · 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 | C02F1/58 |
| Official title | by removing specified dissolved compounds (using ion-exchange C02F1/42; softening water C02F5/00) |
| Display label | by removing specified dissolved compounds (using ion-exchange C02F1/42; softening water C02F5/00) |
| Total patents | 201 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 14 |
| 2017 | 11 |
| 2018 | 12 |
| 2019 | 22 |
| 2020 | 17 |
| 2021 | 26 |
| 2022 | 25 |
| 2023 | 24 |
| 2024 | 17 |
| 2025 | 15 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Catalyst for hydrogen peroxide decomposition, process for producing the same, and method for decomposing hydrogen peroxide using the catalyst
US-10441943-B2 · Oct 15, 2019 · US
Waste liquid treatment device and waste liquid treatment method
US-10407326-B2 · Sep 10, 2019 · US
Formate catalysis from hypersaline environments by a halotolerant halomonas sp.
US-2019218126-A1 · Jul 18, 2019 · US
Reactors and methods for producing and recovering extracellular metal or metalloid nanoparticles
US-2019194040-A1 · Jun 27, 2019 · US
Method for Collecting Uranium by Treatment Process of Washing Waste Liquid Generated in Uranium Hexafluoride Cylinder Washing Process
US-2019139663-A1 · May 9, 2019 · US
Water soluble chain transfer agents
US-10280101-B2 · May 7, 2019 · US
Method for recovering pulp fibers from used absorbent articles
US-2019118233-A1 · Apr 25, 2019 · US
Process For Treating Wastewater
US-2019039932-A1 · Feb 7, 2019 · US
Water treatment
US-2019039918-A1 · Feb 7, 2019 · US
Method for treating an effluent supersaturated with calcium carbonate in the presence of phosphonate precipitation-inhibiting products
US-2019023595-A1 · Jan 24, 2019 · US
Process for the detection and adsorption of arsenic
US-10151736-B2 · Dec 11, 2018 · US
Deionization filter device and water treatment device comprising deionization filter device
US-2018326356-A1 · Nov 15, 2018 · US
Method for recovering water-soluble polyester resin from dissolved support material effluent
US-2018142077-A1 · May 24, 2018 · US
Water quality analysis device
US-2018136186-A1 · May 17, 2018 · US
Layer-Separation Method of Spent Caustic Solution
US-2018119025-A1 · May 3, 2018 · US
Water soluble chain transfer agents
US-2018111900-A1 · Apr 26, 2018 · US
Filtration Aid and Filtration Treatment Method
US-2018111110-A1 · Apr 26, 2018 · US
Substrate processing apparatus, process fluid treating apparatus, and ozone decomposition method
US-2018111860-A1 · Apr 26, 2018 · US
Method of treating an acid effluent containing phosphoric acid
US-9926230-B2 · Mar 27, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F1/58?
- CPC C02F1/58 is the Cooperative Patent Classification code for “by removing specified dissolved compounds (using ion-exchange C02F1/42; softening water C02F5/00).”
- How many patents are filed under CPC C02F1/58 (by removing specified dissolved compounds (using ion-exchange C02F1/42; softening water C02F5/00))?
- Our database includes 201 publications tagged with this CPC code.
- Is patent activity under CPC C02F1/58 growing?
- Publication counts under this code: 17 in 2024 vs 15 in 2025 (latest complete years).