Forged steel roll for cold rolling
US-2024383025-A1 · Nov 21, 2024 · US
for roll bodies
for roll bodies · 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 | C21D9/38 |
| Official title | for roll bodies |
| Display label | for roll bodies |
| Total patents | 61 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 6 |
| 2017 | 12 |
| 2018 | 8 |
| 2019 | 6 |
| 2020 | 7 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 7 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Component for a rolling bearing and corresponding method for producing the component
US-2024318690-A1 · Sep 26, 2024 · US
Method for producing a rolling element bearing component, rolling element bearing component, and rolling element bearing
US-2024279762-A1 · Aug 22, 2024 · US
Process for obtaining a fine-grained martensitic structure component
US-2024271239-A1 · Aug 15, 2024 · US
Rolling bearing
US-2024183401-A1 · Jun 6, 2024 · US
Back roller and preparation method thereof, and coating machine
US-2024100556-A1 · Mar 28, 2024 · US
Method for producing a rolling bearing component
US-2024060531-A1 · Feb 22, 2024 · US
Heat-treated roller bearing ring
US-11821465-B2 · Nov 21, 2023 · US
Centrifugally cast composite roll for hot rolling
US-11712723-B2 · Aug 1, 2023 · US
Method for producing a rolling bearing ring having an improved robustness against the formation of white etching cracks (WEC)
US-11624403-B2 · Apr 11, 2023 · US
Centrifugally cast composite roll for hot rolling
US-2022339685-A1 · Oct 27, 2022 · US
Heat-treated roller bearing ring
US-2022268315-A1 · Aug 25, 2022 · US
Outer layer of rolling roll and composite roll for rolling
US-11052440-B2 · Jul 6, 2021 · US
Heat treatment method of rod-shape workpiece
US-10844447-B2 · Nov 24, 2020 · US
Machine component and method for producing the same
US-10835982-B2 · Nov 17, 2020 · US
Outer layer of rolling roll and composite roll for rolling
US-2020298294-A1 · Sep 24, 2020 · US
Method for producing a rolling bearing ring having an improved robustness against the formation of white etching cracks (wec)
US-2020300303-A1 · Sep 24, 2020 · US
Martensitic alloy component and process of forming a martensitic alloy component
US-10760150-B2 · Sep 1, 2020 · US
Tripod constant velocity universal joint and method for manufacturing same
US-10655677-B2 · May 19, 2020 · US
Case hardening method for high performance long life martensitic stainless steel bearings
US-10577672-B2 · Mar 3, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C21D9/38?
- CPC C21D9/38 is the Cooperative Patent Classification code for “for roll bodies.”
- How many patents are filed under CPC C21D9/38 (for roll bodies)?
- Our database includes 61 publications tagged with this CPC code.
- Is patent activity under CPC C21D9/38 growing?
- Publication counts under this code: 3 in 2023 vs 7 in 2024 (latest complete years).