A zinc or zinc-alloy coated strip or steel with improved zinc adhesion
US-2024117455-A1 · Apr 11, 2024 · US
Controlled slow cooling (cooling-beds for metal rolling B21B43/00)
Controlled slow cooling (cooling-beds for metal rolling B21B43/00) · 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 | C21D1/84 |
| Official title | Controlled slow cooling (cooling-beds for metal rolling B21B43/00) |
| Display label | Controlled slow cooling (cooling-beds for metal rolling B21B43/00) |
| Total patents | 310 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 24 |
| 2017 | 2 |
| 2018 | 21 |
| 2019 | 15 |
| 2020 | 20 |
| 2021 | 14 |
| 2022 | 18 |
| 2023 | 32 |
| 2024 | 78 |
| 2025 | 60 |
| 2026 | 18 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Welded joint and automobile member
US-2024093708-A1 · Mar 21, 2024 · US
Steel for rails and a method of manufacturing of a rail thereof
US-2024002966-A1 · Jan 4, 2024 · US
7000 Series Aluminum Alloy Ladder, Multipurpose Ladder and Method
US-2019234144-A1 · Aug 1, 2019 · US
Steel for resistance to complex corrosion from hydrochloric acid and sulfuric acid, having excellent wear resistance and surface qualities
US-10196704-B2 · Feb 5, 2019 · US
Thick steel plate for high heat input welding and having great heat-affected area toughness and manufacturing method therefor
US-2018371587-A1 · Dec 27, 2018 · US
Thick steel plate for high heat input welding and having great heat-affected area toughness and manufacturing method therefor
US-2018363091-A1 · Dec 20, 2018 · US
High-yield-ratio, high-strength cold rolled steel sheet and production method therefor
US-10156005-B2 · Dec 18, 2018 · US
High-strength air-hardening multiphase steel having excellent processing properties, and method for manufacturing a strip of said steel
US-2018347018-A1 · Dec 6, 2018 · US
Endless rolling apparatus and method
US-2018297092-A1 · Oct 18, 2018 · US
Micro-alloyed high-strength multi-phase steel containing silicon and having a minimum tensile strength of 750 mpa and improved properties and method for producing a strip from said steel
US-2018298476-A1 · Oct 18, 2018 · US
High-formability and super-strength hot galvanizing steel plate and manufacturing method thereof
US-10100385-B2 · Oct 16, 2018 · US
Galvanized steel sheet for hot pressing and method for producing hot pressed molded article
US-2018281348-A1 · Oct 4, 2018 · US
High-strength cold-rolled steel sheet and method of manufacturing the same
US-10077486-B2 · Sep 18, 2018 · US
Age-hardenable steel
US-10066281-B2 · Sep 4, 2018 · US
Production method for plated steel sheet using a steel sheet annealing device
US-10053749-B2 · Aug 21, 2018 · US
Galvannealed steel sheet and manufacturing method thereof
US-10040270-B2 · Aug 7, 2018 · US
Thick steel sheet having excellent CTOD properties in multilayer welded joints, and manufacturing method for thick steel sheet
US-10036079-B2 · Jul 31, 2018 · US
Steel sheet for textile machinery parts and method for manufacturing the same
US-2018202022-A1 · Jul 19, 2018 · US
700Mpa-level high-strength hot rolling Q and P steel and manufacturing method thereof
US-10023928-B2 · Jul 17, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C21D1/84?
- CPC C21D1/84 is the Cooperative Patent Classification code for “Controlled slow cooling (cooling-beds for metal rolling B21B43/00).”
- How many patents are filed under CPC C21D1/84 (Controlled slow cooling (cooling-beds for metal rolling B21B43/00))?
- Our database includes 310 publications tagged with this CPC code.
- Is patent activity under CPC C21D1/84 growing?
- Publication counts under this code: 78 in 2024 vs 60 in 2025 (latest complete years).