Method for extracting metal compound particles, method for analyzing the metal compound particles, and electrolytic solution used therefor
US-11137326-B2 · Oct 5, 2021 · 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 | C25F3/06 |
| Official title | of iron or steel |
| Display label | of iron or steel |
| Total patents | 101 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 4 |
| 2017 | 7 |
| 2018 | 13 |
| 2019 | 10 |
| 2020 | 10 |
| 2021 | 12 |
| 2022 | 14 |
| 2023 | 11 |
| 2024 | 7 |
| 2025 | 6 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Manufacturing method of surface-treated zinc-nickel alloy electroplated steel sheet having excellent corrosion resistivity and paintability
US-2021285118-A1 · Sep 16, 2021 · US
Apparatus for electrolytic etching and dissolution and method for extracting metal compound particles
US-11111595-B2 · Sep 7, 2021 · US
Preparation method for iron-based alloy powder ebsd test sample
US-2021270706-A1 · Sep 2, 2021 · US
Textile Machine Tool Part and Method for Producing a Textile Tool
US-2021245231-A1 · Aug 12, 2021 · US
Method of producing needle cannula with reduced end portion by electrochemical etching
US-11065396-B2 · Jul 20, 2021 · US
Linear groove formation method and linear groove formation device
US-11045902-B2 · Jun 29, 2021 · US
Method of producing needle cannula with reduced end portion by electrochemical etching
US-2021178084-A1 · Jun 17, 2021 · US
Method of producing die, die, and interior component of vehicle
US-10954601-B2 · Mar 23, 2021 · US
Stainless steel sheet for fuel cell separators, and production method therefor
US-10930940-B2 · Feb 23, 2021 · US
Grain-oriented electrical steel sheet
US-10906134-B2 · Feb 2, 2021 · US
Seawater-resistant stainless clad steel
US-10774396-B2 · Sep 15, 2020 · US
Stainless steel for separation plate of polymer electrolyte membrane fuel cell having improved hydrophilic property and corrosion resistance, and manufacturing method therefor
US-2020280075-A1 · Sep 3, 2020 · US
Stainless steel sheet for fuel cell separators, and production method therefor
US-10763517-B2 · Sep 1, 2020 · US
Production method for stainless steel sheet for fuel cell separators
US-2020248332-A1 · Aug 6, 2020 · US
Stainless steel sheet for fuel cell separators and method for producing the same
US-10714764-B2 · Jul 14, 2020 · US
Apparatus for electrolytic etching and dissolution and method for extracting metal compound particles
US-2020141843-A1 · May 7, 2020 · US
Method for extracting metal compound particles, method for analyzing the metal compound particles, and electrolytic solution used therefor
US-2020141023-A1 · May 7, 2020 · US
Method of manufacturing grain-oriented electrical steel sheet
US-10629346-B2 · Apr 21, 2020 · US
Laser-scribed grain-oriented silicon steel resistant to stress-relief annealing and manufacturing method therefor
US-2020058434-A1 · Feb 20, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C25F3/06?
- CPC C25F3/06 is the Cooperative Patent Classification code for “of iron or steel.”
- How many patents are filed under CPC C25F3/06 (of iron or steel)?
- Our database includes 101 publications tagged with this CPC code.
- Is patent activity under CPC C25F3/06 growing?
- Publication counts under this code: 7 in 2024 vs 6 in 2025 (latest complete years).