Production method for valuable metals
US-2025158147-A1 · May 15, 2025 · US
Reduction smelting or converting
Reduction smelting or converting · 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 | C22B15/0052 |
| Official title | {Reduction smelting or converting} |
| Display label | Reduction smelting or converting |
| Total patents | 34 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 1 |
| 2017 | 5 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 8 |
| 2024 | 5 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Production method for valuable metals
US-2024318281-A1 · Sep 26, 2024 · US
Method for producing valuable metal
US-2024240281-A1 · Jul 18, 2024 · US
Method for separating copper from nickel and cobalt
US-11959151-B2 · Apr 16, 2024 · US
Method for recovering valuable metal
US-2024084418-A1 · Mar 14, 2024 · US
Method for recovering valuable metal
US-11926883-B2 · Mar 12, 2024 · US
Method for recovering valuable metal
US-11807914-B2 · Nov 7, 2023 · US
Atomization device, manufacturing method of metal powder, and manufacturing method of valuable metal
US-2023321722-A1 · Oct 12, 2023 · US
Method for obtaining non-ferrous metals, in particular black and/or raw copper, from scrap containing organic matter
US-2023272507-A1 · Aug 31, 2023 · US
Alloy powder, method for manufacturing same, and method for recovering valuable metal
US-2023256507-A1 · Aug 17, 2023 · US
Method for recovering valuable metal
US-2023257851-A1 · Aug 17, 2023 · US
Method for separating copper, and nickel and cobalt
US-11718894-B2 · Aug 8, 2023 · US
Method for recovering valuable metal
US-2023212713-A1 · Jul 6, 2023 · US
Method for recovering valuable metal
US-2023151453-A1 · May 18, 2023 · US
System and method for recovering sulfur in copper smelting process
US-11286162-B2 · Mar 29, 2022 · US
System and method for recovering sulfur in copper smelting process
US-2021331921-A1 · Oct 28, 2021 · US
Method for separating copper, and nickel and cobalt
US-2021180154-A1 · Jun 17, 2021 · US
Method for separating copper from nickel and cobalt
US-2020216929-A1 · Jul 9, 2020 · US
Method and arrangement for feeding fine-grained matter to a concentrate or matte burner of a suspension smelting furnace
US-10451350-B2 · Oct 22, 2019 · US
Method for refining sulfidic copper concentrate
US-10435769-B2 · Oct 8, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22B15/0052?
- CPC C22B15/0052 is the Cooperative Patent Classification code for “Reduction smelting or converting.”
- How many patents are filed under CPC C22B15/0052 (Reduction smelting or converting)?
- Our database includes 34 publications tagged with this CPC code.
- Is patent activity under CPC C22B15/0052 growing?
- Publication counts under this code: 5 in 2024 vs 1 in 2025 (latest complete years).