Method for separating indium oxide and tin oxide from indium tin oxide waste target by vacuum method
US-2026062767-A1 · Mar 5, 2026 · US
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by dry processes
by dry processes · 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 | C22B25/02 |
| Official title | by dry processes |
| Display label | by dry processes |
| Total patents | 18 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2017 | 1 |
| 2018 | 1 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 4 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
System for treating tin smelting intermediate materials and method for treating same
US-12492446-B2 · Dec 9, 2025 · US
Method and apparatus for recovering copper, bronze and lead from mixture of copper oxide, tin oxide and lead oxide
US-2025075287-A1 · Mar 6, 2025 · US
Method and apparatus for recovering copper, bronze and lead from mixture of copper oxide, tin oxide and lead oxide
US-12227819-B2 · Feb 18, 2025 · US
Oxidation-resistant metallic tin
US-12129529-B2 · Oct 29, 2024 · US
Method, apparatus and system for processing a composite waste source
US-2024247335-A1 · Jul 25, 2024 · US
Pyro-metallurgical process in a rotary kiln
US-12018345-B2 · Jun 25, 2024 · US
Method, apparatus and system for processing a composite waste source
US-11884992-B2 · Jan 30, 2024 · US
Circular carbon process
US-2023227316-A1 · Jul 20, 2023 · US
System for treating tin smelting intermediate materials and method for treating same
US-2023111491-A1 · Apr 13, 2023 · US
Pyro-metallurgical process in a rotary kiln
US-2022178001-A1 · Jun 9, 2022 · US
Method and apparatus for recovering copper, bronze and lead from mixture of copper oxide, tin oxide and lead oxide
US-2022002837-A1 · Jan 6, 2022 · US
Oxidation-resistant metallic tin
US-2021381082-A1 · Dec 9, 2021 · US
A method, apparatus and system for processing a composite waste source
US-2021189520-A1 · Jun 24, 2021 · US
Reduction device using liquid metal
US-10689729-B2 · Jun 23, 2020 · US
Method and apparatus for retrieving valuable metals step by step from waste printed circuit board particles
US-10655198-B2 · May 19, 2020 · US
Method and apparatus for retrieving valuable metals step by step from waste printed circuit board particles
US-2018187285-A1 · Jul 5, 2018 · US
Reduction device using liquid metal
US-2017349969-A1 · Dec 7, 2017 · US