Iron sodium hydroxysulphide compound, process for preparing such a compound, active material comprising such a compound and electrochemical electrode produced of such an active material
US-12573627-B2 · Mar 10, 2026 · US
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Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange · 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 | C01G49/0009 |
| Official title | {Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange} |
| Display label | Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange |
| Total patents | 22 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 3 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for manufacturing iron-chromium oxide using ion exchange resin
US-12559384-B2 · Feb 24, 2026 · US
Process for producing iron oxyhydroxide
US-2025282636-A1 · Sep 11, 2025 · US
Systems and methods for separating yttrium and strontium
US-12371338-B2 · Jul 29, 2025 · US
Iron sodium hydroxysulphide compound, process for preparing such a compound, active material comprising such a compound and electrochemical electrode produced of such an active material
US-2025006915-A1 · Jan 2, 2025 · US
Method for preparing an aqueous dispersion of metal oxide particles
US-11897785-B2 · Feb 13, 2024 · US
Method for isolating an aqueous hydrochloric acid solution of fecl3 from an aqueous multi-component system
US-2023391634-A1 · Dec 7, 2023 · US
Method for separating iron element in brine and application thereof
US-2023212027-A1 · Jul 6, 2023 · US
Method for manufacturing iron-chromium oxide using ion exchange resin
US-2023002240-A1 · Jan 5, 2023 · US
Method of purifying waste hydrochloric acid
US-11472702-B2 · Oct 18, 2022 · US
Systems and Methods for Separating Yttrium and Strontium
US-2021238051-A1 · Aug 5, 2021 · US
Method for preparing an aqueous dispersion of metal oxide particles
US-2021163311-A1 · Jun 3, 2021 · US
Active material, electrode, secondary battery, battery pack, and vehicle
US-10910648-B2 · Feb 2, 2021 · US
Ferrimagnetic particle powder and method of manufacturing ferrimagnetic particle powder, as well as magnetic recording medium and method of manufacturing magnetic recording medium
US-10783914-B2 · Sep 22, 2020 · US
Method of purifying waste hydrochloric acid
US-2020270132-A1 · Aug 27, 2020 · US
Active material, electrode, secondary battery, battery pack, and vehicle
US-2019288283-A1 · Sep 19, 2019 · US
Sulfonated aminomethylated chelate resins
US-9950320-B2 · Apr 24, 2018 · US
Ferrimagnetic particle powder and method of manufacturing ferrimagnetic particle powder, as well as magnetic recording medium and method of manufacturing magnetic recording medium
US-2018061445-A1 · Mar 1, 2018 · US
Ferrimagnetic particle powder and manufacturing method therefor, and magnetic recording medium and manufacturing method therefor
US-9805754-B2 · Oct 31, 2017 · US
Sulfonated aminomethylated chelate resins
US-2017216833-A1 · Aug 3, 2017 · US