Metal-resin composite, surface treatment method, and substrate of circuit board for high-frequency and high-speed signal transmission
US-2024342968-A1 · Oct 17, 2024 · US
of iron or steel
of iron or steel · 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 | C25F3/24 |
| Official title | of iron or steel |
| Display label | of iron or steel |
| Total patents | 77 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 6 |
| 2017 | 4 |
| 2018 | 4 |
| 2019 | 6 |
| 2020 | 7 |
| 2021 | 9 |
| 2022 | 10 |
| 2023 | 5 |
| 2024 | 8 |
| 2025 | 6 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Stainless steel material, method for producing same, and antibacterial and antiviral member
US-2024060151-A1 · Feb 22, 2024 · US
In-situ electrochemical polishing of additively manufactured parts
US-2023264265-A1 · Aug 24, 2023 · US
Anti-Corrosive Oil-Impregnated Nanoporous Oxide Coating For Stainless Steel
US-2023183879-A1 · Jun 15, 2023 · US
Method for surface treatment and/or production of a medical product, and a medical product
US-2023160090-A1 · May 25, 2023 · US
Method for the surface treatment and/or manufacture of a medical product, and medical product
US-2023151509-A1 · May 18, 2023 · US
Process and Device for Producing a Coated Structural Component
US-2023041423-A1 · Feb 9, 2023 · US
Method of electropolishing
US-2022411954-A1 · Dec 29, 2022 · US
Electropolishing treatment method for stainless steel workpiece
US-11486052-B2 · Nov 1, 2022 · US
Method of manufacturing surface nanotube array on selective laser melted stainless steel
US-11414773-B2 · Aug 16, 2022 · US
Electropolishing treatment method for stainless steel workpiece
US-2022205128-A1 · Jun 30, 2022 · US
Electric kettle
US-11363905-B2 · Jun 21, 2022 · US
Method of manufacturing surface nanotube array on selective laser melted stainless steel
US-2022152704-A1 · May 19, 2022 · US
Dental drill surface treatment
US-2022125552-A1 · Apr 28, 2022 · US
Method for producing grain oriented electrical steel sheet
US-2022098689-A1 · Mar 31, 2022 · US
Stainless steel structure excellent in hydrogen embrittlement resistance and corrosion resistance and method for manufacturing the same
US-2022042175-A1 · Feb 10, 2022 · US
Method for the surface treatment of a metal or alloy product, and metal or alloy product
US-2022002896-A1 · Jan 6, 2022 · US
Process for the electrolytic polishing of a metallic substrate
US-11162185-B2 · Nov 2, 2021 · US
Golf club head manufacturing method
US-11135648-B1 · Oct 5, 2021 · US
Method for Coating a Motor Vehicle Bodyshell Part, and Motor Vehicle Bodyshell Part
US-2021292915-A1 · Sep 23, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C25F3/24?
- CPC C25F3/24 is the Cooperative Patent Classification code for “of iron or steel.”
- How many patents are filed under CPC C25F3/24 (of iron or steel)?
- Our database includes 77 publications tagged with this CPC code.
- Is patent activity under CPC C25F3/24 growing?
- Publication counts under this code: 8 in 2024 vs 6 in 2025 (latest complete years).