A zinc or zinc-alloy coated strip or steel with improved zinc adhesion
US-2024117455-A1 · Apr 11, 2024 · US
Thermal after-treatment, e.g. treatment in oil bath
Thermal after-treatment, e.g. treatment in oil bath · 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 | C23C2/28 |
| Official title | Thermal after-treatment, e.g. treatment in oil bath |
| Display label | Thermal after-treatment, e.g. treatment in oil bath |
| Total patents | 1,755 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 94 |
| 2016 | 80 |
| 2017 | 122 |
| 2018 | 128 |
| 2019 | 156 |
| 2020 | 164 |
| 2021 | 154 |
| 2022 | 192 |
| 2023 | 178 |
| 2024 | 216 |
| 2025 | 215 |
| 2026 | 56 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Flat steel product having improved processing properties
US-11891676-B2 · Feb 6, 2024 · US
High-strength hot-rolled steel sheet and method for manufacturing the same (as amended)
US-2015368741-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
Hot stamping product with enhanced toughness and method for manufacturing the same
US-2015361532-A1 · Dec 17, 2015 · US
HOT-DIP Al-Zn ALLOY COATED STEEL SHEET AND METHOD FOR PRODUCING SAME
US-2015361538-A1 · Dec 17, 2015 · US
Method for the production of an aluminized packaging steel
US-2015360444-A1 · Dec 17, 2015 · US
Method for Hot-Dip Coating of a Steel Flat Product
US-2015345002-A1 · Dec 3, 2015 · US
HOT-DIP Al-Zn ALLOY COATED STEEL SHEET AND METHOD FOR PRODUCING SAME
US-2015337428-A1 · Nov 26, 2015 · US
Method and apparatus for heating a pre-coated plate of steel
US-9194034-B2 · Nov 24, 2015 · US
Galvannealed steel sheet and method of manufacturing the same
US-2015329946-A1 · Nov 19, 2015 · US
Hot-dip aluminum alloy plated steel having excellent shear cut edge corrosion resistance and processed part corrosion resistance, and method of manufacturing the same
US-9187814-B2 · Nov 17, 2015 · US
Alloyed hot-dip galvanized steel sheet
US-9181598-B2 · Nov 10, 2015 · US
Method for manufacturing galvanized steel sheet
US-2015315692-A1 · Nov 5, 2015 · US
High strength hot-dip galvanized steel sheet having excellent deep drawability
US-9175374-B2 · Nov 3, 2015 · US
Zinc-Plated Steel Sheet for Hot Pressing Having Outstanding Surface Characteristics, Hot-Pressed Moulded Parts Obtained Using the Same, and a Production Method for the Same
US-2015307977-A1 · Oct 29, 2015 · US
Continuous annealing method and a manufacturing method of hot-dip galvanized steel strips
US-9163305-B2 · Oct 20, 2015 · US
METHOD FOR PRODUCING HOT-DIP Zn ALLOY-PLATED STEEL SHEET
US-2015292073-A1 · Oct 15, 2015 · US
Hot-rolled steel sheet and method for manufacturing the same
US-2015284818-A1 · Oct 8, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23C2/28?
- CPC C23C2/28 is the Cooperative Patent Classification code for “Thermal after-treatment, e.g. treatment in oil bath.”
- How many patents are filed under CPC C23C2/28 (Thermal after-treatment, e.g. treatment in oil bath)?
- Our database includes 1,755 publications tagged with this CPC code.
- Is patent activity under CPC C23C2/28 growing?
- Publication counts under this code: 216 in 2024 vs 215 in 2025 (latest complete years).