Non-oriented electrical steel sheet and surface treatment agent for non-oriented electrical steel sheet
US-12492477-B2 · Dec 9, 2025 · US
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containing also organic acids
containing also organic acids · 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 | C23C22/17 |
| Official title | containing also organic acids |
| Display label | containing also organic acids |
| Total patents | 16 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 2 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Surface Adjuster for Zinc Phosphate Chemical Conversion Treatment
US-2025059647-A1 · Feb 20, 2025 · US
Treatment agent for chromium-free insulating coating formation, insulation-coated grain-oriented electrical steel sheet, and method for manufacturing the same
US-12163232-B2 · Dec 10, 2024 · US
Resource-saving method for zinc phosphating of a metal surface
US-2023175138-A1 · Jun 8, 2023 · US
Non-oriented electrical steel sheet and surface treatment agent for non-oriented electrical steel sheet
US-2022341043-A1 · Oct 27, 2022 · US
Treatment agent for chromium-free insulating coating formation, insulation-coated grain-oriented electrical steel sheet, and method for manufacturing the same
US-2022049359-A1 · Feb 17, 2022 · US
Two-step sealing of anodized aluminum coatings
US-10760164-B2 · Sep 1, 2020 · US
Electrical steel sheet
US-10549315-B2 · Feb 4, 2020 · US
Electrical steel sheet
US-10519551-B2 · Dec 31, 2019 · US
Two-step sealing of anodized aluminum coatings
US-2019127860-A1 · May 2, 2019 · US
Two-step sealing of anodized aluminum coatings
US-2018127883-A1 · May 10, 2018 · US
Electrical steel sheet
US-2017341107-A1 · Nov 30, 2017 · US
Electrical steel sheet
US-2017335464-A1 · Nov 23, 2017 · US
Process for coating metallic surfaces with a passivating agent, the passivating agent and its use
US-2017314137-A1 · Nov 2, 2017 · US
Semiconductor that has a functionalized surface
US-9048188-B2 · Jun 2, 2015 · US
Anti-corrosive treatment for surfaces made of zinc and zinc alloys
US-8951363-B2 · Feb 10, 2015 · US