Low-density clad steel sheet having excellent formability and fatigue property and manufacturing method therefor
US-2024326399-A1 · Oct 3, 2024 · US
Ferrite
Ferrite · 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 | C21D2211/005 |
| Official title | Ferrite |
| Display label | Ferrite |
| Total patents | 3,350 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 180 |
| 2016 | 178 |
| 2017 | 248 |
| 2018 | 262 |
| 2019 | 320 |
| 2020 | 329 |
| 2021 | 300 |
| 2022 | 384 |
| 2023 | 330 |
| 2024 | 325 |
| 2025 | 392 |
| 2026 | 102 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Non-oriented electrical steel sheet and production method thereof
US-2024271255-A1 · Aug 15, 2024 · US
A zinc or zinc-alloy coated strip or steel with improved zinc adhesion
US-2024117455-A1 · Apr 11, 2024 · US
High-strength steel sheet having excellent bendability and formability and method for manufacturing same
US-2024026485-A1 · Jan 25, 2024 · US
Steel for rails and a method of manufacturing of a rail thereof
US-2024002966-A1 · Jan 4, 2024 · US
Ferritic stainless steel sheet which is excellent in workability and method of production of same
US-2015376732-A1 · Dec 31, 2015 · US
High-strength hot-rolled steel sheet and method for manufacturing the same (as amended)
US-2015368741-A1 · Dec 24, 2015 · US
Hot-rolled steel sheet for high strength linepipe
US-2015368736-A1 · Dec 24, 2015 · US
High-strength hot-rolled steel sheet and method for manufacturing the same
US-2015368739-A1 · Dec 24, 2015 · US
High-strength hot-rolled steel sheet and method for manufacturing the same
US-2015368738-A1 · Dec 24, 2015 · US
High strength steel sheet and method for manufacturing the same
US-9212411-B2 · Dec 15, 2015 · US
Steel sheet for soft-nitriding and method for manufacturing the same
US-2015354034-A1 · Dec 10, 2015 · US
A high-strength hot-rolled steel strip or sheet with excellent formability and fatigue performance and a method of manufacturing said steel strip or sheet
US-2015354021-A1 · Dec 10, 2015 · US
Method for manufacturing an ultra-highstrength steel bar
US-9200353-B2 · Dec 1, 2015 · US
High-formability and super-strength cold-rolled steel sheet and manufacturing method thereof
US-2015337416-A1 · Nov 26, 2015 · US
High-strength steel sheet with excellent deep drawability at room temperature and warm temperature, and method for warm working same
US-9194032-B2 · Nov 24, 2015 · US
Hot-rolled steel sheet exhibiting excellent cold formability and excellent surface hardness after forming
US-2015329932-A1 · Nov 19, 2015 · US
Steel sheet and fabrication method thereof
US-2015314569-A1 · Nov 5, 2015 · US
Ferritic stainless steel having excellent heat resistance
US-2015292068-A1 · Oct 15, 2015 · US
Hot rolled steel sheet for square column for building structural members and method of manufacturing the same
US-2015292054-A1 · Oct 15, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C21D2211/005?
- CPC C21D2211/005 is the Cooperative Patent Classification code for “Ferrite.”
- How many patents are filed under CPC C21D2211/005 (Ferrite)?
- Our database includes 3,350 publications tagged with this CPC code.
- Is patent activity under CPC C21D2211/005 growing?
- Publication counts under this code: 325 in 2024 vs 392 in 2025 (latest complete years).