Continuous annealer for wire
US-2024093327-A1 · Mar 21, 2024 · US
Continuous furnaces for strip or wire
Continuous furnaces for strip or wire · 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 | C21D9/56 |
| Official title | Continuous furnaces for strip or wire |
| Display label | Continuous furnaces for strip or wire |
| Total patents | 227 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 14 |
| 2016 | 26 |
| 2017 | 19 |
| 2018 | 25 |
| 2019 | 15 |
| 2020 | 28 |
| 2021 | 20 |
| 2022 | 19 |
| 2023 | 21 |
| 2024 | 16 |
| 2025 | 17 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of production of tin containing non grain-oriented silicon steel sheet , steel sheet obtained and use thereof
US-2017314087-A1 · Nov 2, 2017 · US
Steel sheet for cans and method for manufacturing steel sheet for cans
US-2017314095-A1 · Nov 2, 2017 · US
Dual-phase steel sheet with excellent formability and manufacturing method therefor
US-2017306438-A1 · Oct 26, 2017 · US
Hearth roll and continuous annealing facility
US-2017275731-A1 · Sep 28, 2017 · US
Alloy, magnetic core and process for the production of a tape from an alloy
US-9773595-B2 · Sep 26, 2017 · US
Continuous annealing furnace for annealing steel strip, method for continuously annealing steel strip, continuous hot-dip galvanizing facility, and method for manufacturing hot-dip galvanized steel strip
US-9759491-B2 · Sep 12, 2017 · US
Method for operating a continuous annealing line for the processing of a rolled good
US-9732396-B2 · Aug 15, 2017 · US
Steel-strip production apparatus
US-2017218476-A1 · Aug 3, 2017 · US
Steel-strip production method, and steel strip
US-2017219288-A1 · Aug 3, 2017 · US
Continuous galvanizing line having an annealing furnace
US-9713823-B2 · Jul 25, 2017 · US
Method for Baking Coated Printing Plates
US-2017204512-A1 · Jul 20, 2017 · US
Very thin steel sheet and production method thereof
US-9689052-B2 · Jun 27, 2017 · US
Method of producing galvannealed steel sheet
US-2017130296-A1 · May 11, 2017 · US
Transverse flux induction heating device
US-2017127482-A1 · May 4, 2017 · US
System and method for treating an amorphous alloy ribbon
US-2017096721-A1 · Apr 6, 2017 · US
Continuous annealing furnace for steel strip, continuous annealing method, continuous galvanizing apparatus and method for manufacturing galvanized steel strip (as amended)
US-9593401-B2 · Mar 14, 2017 · US
Method For The Heat Treatment Of A Steel Reinforcement Element For Tires
US-2017051375-A1 · Feb 23, 2017 · US
Transverse flux induction heating device
US-9578693-B2 · Feb 21, 2017 · US
Apparatus and method for the treatment of a flat steel product, taking place in throughput
US-9551046-B2 · Jan 24, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C21D9/56?
- CPC C21D9/56 is the Cooperative Patent Classification code for “Continuous furnaces for strip or wire.”
- How many patents are filed under CPC C21D9/56 (Continuous furnaces for strip or wire)?
- Our database includes 227 publications tagged with this CPC code.
- Is patent activity under CPC C21D9/56 growing?
- Publication counts under this code: 16 in 2024 vs 17 in 2025 (latest complete years).