Manufacturing method of aluminum-coated steel sheet, aluminum-plated steel sheet, and hot stamping product
US-2026043118-A1 · Feb 12, 2026 · US
refining {(electrolytic refining C25C; C22B21/0046, C22B21/0061 take precedence)}
refining {(electrolytic refining C25C; C22B21/0046, C22B21/0061 take 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 | C22B21/06 |
| Official title | refining {(electrolytic refining C25C; C22B21/0046, C22B21/0061 take precedence)} |
| Display label | refining {(electrolytic refining C25C; C22B21/0046, C22B21/0061 take 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 growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 5 |
| 2017 | 9 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 5 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Degassing launder
US-2026015689-A1 · Jan 15, 2026 · US
Degassing launder
US-12454738-B2 · Oct 28, 2025 · US
Methods of recycling aluminum alloys and purification thereof
US-2025283192-A1 · Sep 11, 2025 · US
Methods of recycling aluminum alloys and purification thereof
US-12338507-B2 · Jun 24, 2025 · US
Heat-treatment-free die-cast aluminum alloy material, preparation method thereof and automobile structural member
US-2025066882-A1 · Feb 27, 2025 · US
Method of recycling aluminum scrap and apparatus for recycling aluminum scrap
US-2025051876-A1 · Feb 13, 2025 · US
Purification Method of Recovered Aluminum Melt for Automobile Hub
US-2024109122-A1 · Apr 4, 2024 · US
Method for recycling aluminum alloy scrap
US-2024093331-A1 · Mar 21, 2024 · US
Method for safe recovery of a waste anode piece of a lithium ion battery and application thereof
US-2023335816-A1 · Oct 19, 2023 · US
Degassing launder
US-2023212711-A1 · Jul 6, 2023 · US
Recycling method for aluminum alloy
US-2022106666-A1 · Apr 7, 2022 · US
Aluminium Purification
US-2021238709-A1 · Aug 5, 2021 · US
Method for using a tubular sonotrode
US-10837081-B2 · Nov 17, 2020 · US
Method for wetting a sonotrode
US-10677763-B2 · Jun 9, 2020 · US
Ultrasonic degassing of molten metals
US-10640846-B2 · May 5, 2020 · US
Method for inspecting a liquid metal by ultrasounds
US-10563285-B2 · Feb 18, 2020 · US
Method of refining aluminum alloy
US-10494699-B2 · Dec 3, 2019 · US
Ultrasonic Probes with Gas Outlets for Degassing of Molten Metals
US-2019185961-A1 · Jun 20, 2019 · US
Ultrasonic probes with gas outlets for degassing of molten metals
US-10316387-B2 · Jun 11, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22B21/06?
- CPC C22B21/06 is the Cooperative Patent Classification code for “refining {(electrolytic refining C25C; C22B21/0046, C22B21/0061 take precedence)}.”
- How many patents are filed under CPC C22B21/06 (refining {(electrolytic refining C25C; C22B21/0046, C22B21/0061 take precedence)})?
- Our database includes 42 publications tagged with this CPC code.
- Is patent activity under CPC C22B21/06 growing?
- Publication counts under this code: 2 in 2024 vs 5 in 2025 (latest complete years).