Flat steel product having improved processing properties
US-11891676-B2 · Feb 6, 2024 · US
by hot working
by hot working · 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 | C21D7/13 |
| Official title | by hot working |
| Display label | by hot working |
| Total patents | 677 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 47 |
| 2016 | 49 |
| 2017 | 41 |
| 2018 | 52 |
| 2019 | 52 |
| 2020 | 47 |
| 2021 | 54 |
| 2022 | 60 |
| 2023 | 78 |
| 2024 | 81 |
| 2025 | 91 |
| 2026 | 25 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hot work tool material and method for manufacturing hot work tool
US-2016348202-A1 · Dec 1, 2016 · US
Hot-pressed steel sheet member, method of manufacturing the same, and steel sheet for hot pressing
US-2016312330-A1 · Oct 27, 2016 · US
Forming of metallic glass by rapid capacitor discharge
US-2016298205-A1 · Oct 13, 2016 · US
Apparatus to quench a ring-shaped article
US-9453268-B2 · Sep 27, 2016 · US
Air-hardenable bainitic steel part
US-9440693-B2 · Sep 13, 2016 · US
Hot forging use non-heat-treated steel and hot forged non-heat-treated steel part
US-2016251743-A1 · Sep 1, 2016 · US
Precipitation hardening martensitic stainless steel, and steam turbine long blade, steam turbine, and power plant using the same
US-9388702-B2 · Jul 12, 2016 · US
Resiliently mounted, segmented hot forming tool and method for producing a hot formed and press-hardened steel component having a sharply defined transition region
US-2016175910-A1 · Jun 23, 2016 · US
Method for forming blank and method for determining preforming shape
US-2016160311-A1 · Jun 9, 2016 · US
High strength steel sheet excellent in delayed fracture resistance and low temperature toughness, and high strength member manufactured using the same
US-9353424-B2 · May 31, 2016 · US
High carbon steel wire rod and method for manufacturing same
US-2016145712-A1 · May 26, 2016 · US
Case hardening steel, method for producing same, and mechanical structural part using case hardening steel
US-9297051-B2 · Mar 29, 2016 · US
Air-hardenable bainitic steel with enhanced material characteristics
US-2015376750-A1 · Dec 31, 2015 · US
Duplex stainless steel material and duplex stainless steel pipe
US-2015354038-A1 · Dec 10, 2015 · US
Forged component, method for manufacturing the same, and connecting rod
US-2015354042-A1 · Dec 10, 2015 · US
Thermomechanical processing of high strength non-magnetic corrosion resistant material
US-9192981-B2 · Nov 24, 2015 · US
Methods for making high hardness, high toughness iron-base alloys
US-2015322554-A1 · Nov 12, 2015 · US
Dual hardness steel article
US-9182196-B2 · Nov 10, 2015 · US
Hot-rolled stainless steel sheet having excellent hardness and low-temperature impact properties
US-2015315686-A1 · Nov 5, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C21D7/13?
- CPC C21D7/13 is the Cooperative Patent Classification code for “by hot working.”
- How many patents are filed under CPC C21D7/13 (by hot working)?
- Our database includes 677 publications tagged with this CPC code.
- Is patent activity under CPC C21D7/13 growing?
- Publication counts under this code: 81 in 2024 vs 91 in 2025 (latest complete years).