Removal of impurities contained in iron ores
US-2025146099-A1 · May 8, 2025 · US
or iron group metals, refractory metals or manganese
or iron group metals, refractory metals or manganese · 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 | C25C1/06 |
| Official title | or iron group metals, refractory metals or manganese |
| Display label | or iron group metals, refractory metals or manganese |
| Total patents | 69 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 3 |
| 2017 | 7 |
| 2018 | 10 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 7 |
| 2024 | 6 |
| 2025 | 13 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electrolysis apparatus for the production of iron with an improved gas permeable anode plate
US-2025051946-A1 · Feb 13, 2025 · US
Electrochemical cogeneration of iron and commodity chemicals
US-2025051948-A1 · Feb 13, 2025 · US
Electrolysis apparatus for the production of iron with an improved iron oxide supply device
US-2025027221-A1 · Jan 23, 2025 · US
Method for manufacturing iron metal by electrolysis
US-2024410069-A1 · Dec 12, 2024 · US
Process to make calcium oxide or ordinary portland cement from calcium bearing rocks and minerals
US-2024383804-A1 · Nov 21, 2024 · US
High-efficiency electrolysis of iron ore for iron production
US-2024376621-A1 · Nov 14, 2024 · US
Electrochemical cell and process for producing metal and a co-product from metal oxide and an aqueous halide salt
US-2024200217-A1 · Jun 20, 2024 · US
System and method for storing and generating electricity
US-11993858-B2 · May 28, 2024 · US
Flash recycling of batteries
US-2024120506-A1 · Apr 11, 2024 · US
Electrochemical cell and process for producing metal and chlorine gas
US-2023392272-A1 · Dec 7, 2023 · US
Process to make calcium oxide or ordinary portland cement from calcium bearing rocks and minerals
US-2023339807-A1 · Oct 26, 2023 · US
Systems and methods for processing ash
US-2023330724-A1 · Oct 19, 2023 · US
Method for recovering metals from tungsten-containing metallic material
US-2023265574-A1 · Aug 24, 2023 · US
Process to make calcium oxide or ordinary Portland cement from calcium bearing rocks and minerals
US-11718558-B2 · Aug 8, 2023 · US
System and method for storing and generating electricity
US-2023203690-A1 · Jun 29, 2023 · US
Electrolytic smelting furnace and electrolytic smelting method
US-2023026097-A1 · Jan 26, 2023 · US
Process to make calcium oxide or ordinary portland cement from calcium bearing rocks and minerals
US-2022411328-A1 · Dec 29, 2022 · US
Methods of forming a metal alloy
US-2022049368-A1 · Feb 17, 2022 · US
Recovery of rare earth metals from ferromagnetic alloys
US-2022002890-A1 · Jan 6, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C25C1/06?
- CPC C25C1/06 is the Cooperative Patent Classification code for “or iron group metals, refractory metals or manganese.”
- How many patents are filed under CPC C25C1/06 (or iron group metals, refractory metals or manganese)?
- Our database includes 69 publications tagged with this CPC code.
- Is patent activity under CPC C25C1/06 growing?
- Publication counts under this code: 6 in 2024 vs 13 in 2025 (latest complete years).