Solidifying metals or metalloids from a liquid cathode during molten oxide electrolysis
US-2025250690-A1 · Aug 7, 2025 · US
Electrolytic production, recovery or refining of metals by electrolysis of melts (C25C5/00 takes precedence)
Electrolytic production, recovery or refining of metals by electrolysis of melts (C25C5/00 takes 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 | C25C3/00 |
| Official title | Electrolytic production, recovery or refining of metals by electrolysis of melts (C25C5/00 takes precedence) |
| Display label | Electrolytic production, recovery or refining of metals by electrolysis of melts (C25C5/00 takes precedence) |
| Total patents | 42 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 2 |
| 2017 | 7 |
| 2018 | 5 |
| 2019 | 3 |
| 2020 | 2 |
| 2021 | 6 |
| 2022 | 5 |
| 2023 | 2 |
| 2024 | 6 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods of Forming a Metal Material from a Metal Oxide Material by Electrochemical Reduction and Related Systems and Articles
US-2024337037-A1 · Oct 10, 2024 · US
Method for refining beryllium by molten salt electrolysis
US-2024254644-A1 · Aug 1, 2024 · US
Electrochemical method for separation of zirconium and hafnium
US-2024240343-A1 · Jul 18, 2024 · US
Method for preparing titanium metal by molten salt electrolysis
US-2024200218-A1 · Jun 20, 2024 · US
Method and Apparatus for Efficient Metal Distillation and Related Primary Production Process
US-2024141528-A1 · May 2, 2024 · US
Electrochemical method for high-temperature molten salt electrolysis in humid atmosphere
US-11897780-B2 · Feb 13, 2024 · US
Methods of recovering an elemental rare earth metal, and methods of forming a rare earth metal
US-11788171-B2 · Oct 17, 2023 · US
System and process for sustainable electrowinning of metal
US-2023279572-A1 · Sep 7, 2023 · US
Electrolysis apparatus for the electrolytic production of oxygen from oxide-containing starting material
US-11479869-B2 · Oct 25, 2022 · US
System, apparatus, and process for leaching metal and storing thermal energy during metal extraction
US-11390933-B2 · Jul 19, 2022 · US
Engineering process for halogen salts, using two identical electrodes
US-2022186392-A1 · Jun 16, 2022 · US
An electrochemical method of reducing metal oxide
US-2022145484-A1 · May 12, 2022 · US
Method for manufacturing metal lithium
US-11280012-B2 · Mar 22, 2022 · US
Methods of recovering an elemental rare earth metal, methods of forming a rare earth metal, and related systems
US-2021292870-A1 · Sep 23, 2021 · US
Removal of metal ions from aqueous solution via liquid/liquid extraction and electrochemistry
US-2021292196-A1 · Sep 23, 2021 · US
Precursor materials and methods for the preparation of nanostructured carbon materials
US-2021164114-A1 · Jun 3, 2021 · US
Electrolysis apparatus for the electrolytic production of oxygen from oxide-containing starting material
US-2021123148-A1 · Apr 29, 2021 · US
System apparatus and process for leaching metal and storing thermal energy during metal extraction
US-10907238-B2 · Feb 2, 2021 · US
Electrochemical method for high-temperature molten salt electrolysis in humid atmosphere
US-2021009415-A1 · Jan 14, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C25C3/00?
- CPC C25C3/00 is the Cooperative Patent Classification code for “Electrolytic production, recovery or refining of metals by electrolysis of melts (C25C5/00 takes precedence).”
- How many patents are filed under CPC C25C3/00 (Electrolytic production, recovery or refining of metals by electrolysis of melts (C25C5/00 takes precedence))?
- Our database includes 42 publications tagged with this CPC code.
- Is patent activity under CPC C25C3/00 growing?
- Publication counts under this code: 6 in 2024 vs 1 in 2025 (latest complete years).