Non-oriented electrical steel sheet
US-2022336129-A1 · Oct 20, 2022 · US
containing aluminium cations
containing aluminium cations · 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 | C23C22/20 |
| Official title | containing aluminium cations |
| Display label | containing aluminium cations |
| Total patents | 142 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 4 |
| 2017 | 9 |
| 2018 | 6 |
| 2019 | 11 |
| 2020 | 13 |
| 2021 | 12 |
| 2022 | 23 |
| 2023 | 9 |
| 2024 | 24 |
| 2025 | 26 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electrical steel sheet having insulating coating
US-2022106689-A1 · Apr 7, 2022 · US
Grain-oriented electrical steel sheet and method of producing the same
US-2022068526-A1 · Mar 3, 2022 · US
Iron-based powder for dust cores and dust core
US-2022044859-A1 · Feb 10, 2022 · US
Coating composition for electrical steel sheet, and electrical steel sheet comprising insulating coating
US-2021380822-A1 · Dec 9, 2021 · US
Insulating coating treatment liquid, and grain-oriented electrical steel sheet having insulating coating and method for producing the same
US-2021317319-A1 · Oct 14, 2021 · US
Grain-oriented electrical steel sheet and method for refining magnetic domain of same
US-2021317545-A1 · Oct 14, 2021 · US
Grain-oriented electrical steel sheet
US-11145446-B2 · Oct 12, 2021 · US
Grain-oriented magnetic steel sheets having chromium-free insulating tension coating, and methods for producing such steel sheets
US-2021287834-A1 · Sep 16, 2021 · US
Production method for treatment solution for forming insulating coating, production method for steel sheet having insulating coating, and production apparatus for treatment solution for forming insulating coating
US-2021269921-A1 · Sep 2, 2021 · US
Grain-oriented electrical steel sheet and method for producing grain-oriented electrical steel sheet
US-11072861-B2 · Jul 27, 2021 · US
Electrical steel sheet having insulating coating, method for producing the same, transformer core and transformer using the electrical steel sheet, and method for reducing dielectric loss in transformer
US-2021202145-A1 · Jul 1, 2021 · US
Insulating-coated oriented magnetic steel sheet and method for manufacturing same
US-10920323-B2 · Feb 16, 2021 · US
Insulating coating-attached electrical steel sheet and manufacturing method therefor
US-2021035718-A1 · Feb 4, 2021 · US
Grain oriented electrical steel sheet
US-2021027922-A1 · Jan 28, 2021 · US
Method for manufacturing grain-oriented electrical steel sheet and grain-oriented electrical steel sheet
US-2021017619-A1 · Jan 21, 2021 · US
Grain oriented electrical steel sheet
US-2020354809-A1 · Nov 12, 2020 · US
Coating solution for forming insulating film for grain-oriented electrical steel sheet, and method for producing grain-oriented electrical steel sheet
US-2020354582-A1 · Nov 12, 2020 · US
Treated article and method of making the same
US-10675658-B2 · Jun 9, 2020 · US
Grain-oriented electrical steel sheet
US-2020176156-A1 · Jun 4, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23C22/20?
- CPC C23C22/20 is the Cooperative Patent Classification code for “containing aluminium cations.”
- How many patents are filed under CPC C23C22/20 (containing aluminium cations)?
- Our database includes 142 publications tagged with this CPC code.
- Is patent activity under CPC C23C22/20 growing?
- Publication counts under this code: 24 in 2024 vs 26 in 2025 (latest complete years).