Cold rolled steel sheet for zirconium-based chemical conversion treatment, method for producing same, zirconium-based chemical conversion-treated steel sheet, and method for producing same
US-2021395895-A1 · Dec 23, 2021 · US
containing zinc cations
containing zinc 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 | C23C22/12 |
| Official title | containing zinc cations |
| Display label | containing zinc cations |
| Total patents | 147 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 3 |
| 2017 | 7 |
| 2018 | 12 |
| 2019 | 15 |
| 2020 | 8 |
| 2021 | 12 |
| 2022 | 18 |
| 2023 | 17 |
| 2024 | 25 |
| 2025 | 22 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
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 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
Electric resistance welded steel pipe having identifiable seam portion and method for manufacturing the same
US-11045896-B2 · Jun 29, 2021 · US
Surface-treated metal sheet, coated member, and method for producing coated member
US-11028276-B2 · Jun 8, 2021 · US
Steel sheet and manufacturing method of therefor
US-2021123122-A1 · Apr 29, 2021 · US
Aqueous dispersion for activating a metal surface and method for the phosphating thereof
US-2021087693-A1 · Mar 25, 2021 · US
Conveying rack cleaning in an electrodeposition process
US-2021062356-A1 · Mar 4, 2021 · US
Insulating-coated oriented magnetic steel sheet and method for manufacturing same
US-10920323-B2 · Feb 16, 2021 · US
Synergistic corrosion inhibitor compositions
US-10889723-B2 · Jan 12, 2021 · US
Threaded Connection for Pipes and Method for Producing Threaded Connection for Pipes
US-2020400255-A1 · Dec 24, 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
Two-step pretreatment system and method
US-2020248313-A1 · Aug 6, 2020 · US
Synergistic Corrosion Inhibitor Compositions
US-2020148893-A1 · May 14, 2020 · US
Bonding agent composition
US-2020115591-A1 · Apr 16, 2020 · US
Electrical steel sheet
US-10604848-B2 · Mar 31, 2020 · US
Hot-dip zinc-based plated steel sheet
US-10549506-B2 · Feb 4, 2020 · US
Metallic coated steel product
US-2020002798-A1 · Jan 2, 2020 · US
Electrical steel sheet
US-2019367746-A1 · Dec 5, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23C22/12?
- CPC C23C22/12 is the Cooperative Patent Classification code for “containing zinc cations.”
- How many patents are filed under CPC C23C22/12 (containing zinc cations)?
- Our database includes 147 publications tagged with this CPC code.
- Is patent activity under CPC C23C22/12 growing?
- Publication counts under this code: 25 in 2024 vs 22 in 2025 (latest complete years).