Coupling and rotor shaft for molten metal devices
US-12560169-B2 · Feb 24, 2026 · US
General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals · 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 | C22B9/00 |
| Official title | General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals |
| Display label | General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals |
| Total patents | 36 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 5 |
| 2017 | 5 |
| 2018 | 3 |
| 2019 | 7 |
| 2020 | 2 |
| 2022 | 2 |
| 2024 | 1 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Metal purification device and method based on mass-to-charge ratio difference
US-2025381570-A1 · Dec 18, 2025 · US
Coupling and rotor shaft for molten metal devices
US-12410800-B2 · Sep 9, 2025 · US
Method for generating trained prediction model that predicts amount of dross generated in melting furnace, method for predicting amount of dross generated in melting furnace, and computer program
US-2025164952-A1 · May 22, 2025 · US
Heat-treatment-free die-cast aluminum alloy material, preparation method thereof and automobile structural member
US-2025066882-A1 · Feb 27, 2025 · US
Rotor and rotor shaft for molten metal
US-11939994-B2 · Mar 26, 2024 · US
Rotor and rotor shaft for molten metal
US-2022213895-A1 · Jul 7, 2022 · US
Rotor and rotor shaft for molten metal
US-11286939-B2 · Mar 29, 2022 · US
Ultrasonic degassing of molten metals
US-10640846-B2 · May 5, 2020 · US
Heavy metal separations using strongly paramagnetic column packings in a nonhomogeneous magnetic field
US-10632400-B2 · Apr 28, 2020 · US
Coupling and rotor shaft for molten metal devices
US-2019360492-A1 · Nov 28, 2019 · US
Coupling and rotor shaft for molten metal devices
US-2019360491-A1 · Nov 28, 2019 · US
Coupling and rotor shaft for molten metal devices
US-10465688-B2 · Nov 5, 2019 · US
Apparatus for refining molten aluminum alloys
US-10393439-B2 · Aug 27, 2019 · US
Process for the production of a PGM-enriched alloy
US-10323302-B2 · Jun 18, 2019 · US
Heavy metal separations using strongly paramagnetic column packings in a nonhomogeneous magnetic field
US-2019176056-A1 · Jun 13, 2019 · US
Process for the production of a PGM-enriched alloy
US-10202669-B2 · Feb 12, 2019 · US
Rotor and rotor shaft for molten metal
US-10138892-B2 · Nov 27, 2018 · US
Rotor and rotor shaft for molten metal
US-2018195513-A1 · Jul 12, 2018 · US
Process for the production of a pgm-enriched alloy
US-2018142330-A1 · May 24, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22B9/00?
- CPC C22B9/00 is the Cooperative Patent Classification code for “General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals.”
- How many patents are filed under CPC C22B9/00 (General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals)?
- Our database includes 36 publications tagged with this CPC code.
- Is patent activity under CPC C22B9/00 growing?
- Publication counts under this code: 1 in 2024 vs 4 in 2025 (latest complete years).