High-strength cold-rolled steel sheet having excellent surface quality and low material variation, and method for manufacturing same
US-2024384366-A1 · Nov 21, 2024 · US
Chemistry & Metallurgy
Chemistry & Metallurgy · 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 | C21D8/0205 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 2,388 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 38 |
| 2016 | 93 |
| 2017 | 118 |
| 2018 | 147 |
| 2019 | 203 |
| 2020 | 258 |
| 2021 | 261 |
| 2022 | 346 |
| 2023 | 268 |
| 2024 | 291 |
| 2025 | 301 |
| 2026 | 64 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for manufacturing cold-rolled or zinc-plated dual-phase steel plate over 980 MPa
US-12084751-B2 · Sep 10, 2024 · US
A zinc or zinc-alloy coated strip or steel with improved zinc adhesion
US-2024117455-A1 · Apr 11, 2024 · US
Welded joint and automobile member
US-2024093708-A1 · Mar 21, 2024 · US
High-strength steel sheet having improved resistance to fracture and to HIC
US-9528172-B2 · Dec 27, 2016 · US
High-strength galvanized steel sheet and method for manufacturing the same
US-2016319385-A1 · Nov 3, 2016 · US
Lightweight steel sheet having excellent strength and ductility and method for manufacturing same
US-2016312332-A1 · Oct 27, 2016 · US
Steel plate and method for manufacturing same (as amended)
US-2016312327-A1 · Oct 27, 2016 · US
Hot-rolled steel sheet having excellent surface hardness after carburizing heat treatment and excellent drawability
US-2016265078-A1 · Sep 15, 2016 · US
Hot-dip galvanized steel sheets and galvannealed steel sheets that have good appearance and adhesion to coating and methods for producing the same (as amended)
US-2016222500-A1 · Aug 4, 2016 · US
Non quenched and tempered steel and manufacturing process thereof
US-2016208358-A1 · Jul 21, 2016 · US
Steel sheet for enamel having no surface defects and method of manufacturing the same
US-9382597-B2 · Jul 5, 2016 · US
Ultrahigh-strength steel sheet and manufacturing method therefor
US-2016186285-A1 · Jun 30, 2016 · US
Hot rolled light-gauge martensitic steel sheet and method for making the same
US-2016177411-A1 · Jun 23, 2016 · US
Superstrength cold rolled weathering steel sheet and method of manufacturing same
US-2016160330-A1 · Jun 9, 2016 · US
Method for producing a flat product from an iron-based shape memory alloy
US-2016145708-A1 · May 26, 2016 · US
High strength hot rolled steel sheet and method for manufacturing the same
US-2016138126-A1 · May 19, 2016 · US
Grain oriented electrical steel sheet and method of manufacturing the same
US-2016102378-A1 · Apr 14, 2016 · US
Steel plate resistant to zinc-induced crack and manufacturing method therefor
US-2016097111-A1 · Apr 7, 2016 · US
High-strength galvanized steel sheet and method for manufacturing the same (as amended)
US-2016047011-A1 · Feb 18, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C21D8/0205?
- CPC C21D8/0205 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C21D8/0205 (Chemistry & Metallurgy)?
- Our database includes 2,388 publications tagged with this CPC code.
- Is patent activity under CPC C21D8/0205 growing?
- Publication counts under this code: 291 in 2024 vs 301 in 2025 (latest complete years).