Annealing facility, and method for manufacturing grain-oriented electromagnetic steel sheet
US-2026035762-A1 · Feb 5, 2026 · US
Rolls; Drums; Roll arrangements
Rolls; Drums; Roll arrangements · 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 | C21D9/563 |
| Official title | {Rolls; Drums; Roll arrangements} |
| Display label | Rolls; Drums; Roll arrangements |
| Total patents | 60 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 6 |
| 2020 | 6 |
| 2021 | 10 |
| 2022 | 5 |
| 2023 | 6 |
| 2024 | 5 |
| 2025 | 10 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hearth roll for continuous annealing furnace
US-12473606-B2 · Nov 18, 2025 · US
Cooling device and heat treatment apparatus including the same
US-2025281957-A1 · Sep 11, 2025 · US
Hearth roll for continuous annealing furnace
US-2025257417-A1 · Aug 14, 2025 · US
Steel-strip production method, and steel strip
US-12366409-B2 · Jul 22, 2025 · US
Heat treatment apparatus and guide roller for heat treatment apparatus
US-2025230009-A1 · Jul 17, 2025 · US
Heat treatment apparatus
US-2025230977-A1 · Jul 17, 2025 · US
Heat treatment apparatus
US-2025230980-A1 · Jul 17, 2025 · US
Heat treatment apparatus
US-2025230518-A1 · Jul 17, 2025 · US
Metal plate, method for manufacturing metal plate, and method for manufacturing metal mask
US-2025222500-A1 · Jul 10, 2025 · US
Hearth roll for continuous annealing furnace
US-12312646-B2 · May 27, 2025 · US
Alloy ribbon and magnetic core
US-12159743-B2 · Dec 3, 2024 · US
Steel sheet, member, and methods for producing the same
US-12146204-B2 · Nov 19, 2024 · US
Method for forming film and method for manufacturing electrical steel sheet with insulating film
US-12033791-B2 · Jul 9, 2024 · US
Method for forming film and method for manufacturing electrical steel sheet with insulating film
US-2024105384-A1 · Mar 28, 2024 · US
Continuous annealer for wire
US-2024093327-A1 · Mar 21, 2024 · US
Ultra-high strength weathering steel piles and structural foundations with bending resistance
US-11846004-B2 · Dec 19, 2023 · US
Heat treatment method for amorphous alloy ribbon and heat treatment apparatus for amorphous alloy ribbon
US-2023366054-A1 · Nov 16, 2023 · US
Ultra-high strength weathering steel for hot-stamping applications
US-11773465-B2 · Oct 3, 2023 · US
Motor core production method and heat treatment device used therefor
US-2023235422-A1 · Jul 27, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C21D9/563?
- CPC C21D9/563 is the Cooperative Patent Classification code for “Rolls; Drums; Roll arrangements.”
- How many patents are filed under CPC C21D9/563 (Rolls; Drums; Roll arrangements)?
- Our database includes 60 publications tagged with this CPC code.
- Is patent activity under CPC C21D9/563 growing?
- Publication counts under this code: 5 in 2024 vs 10 in 2025 (latest complete years).