Metal-plastic hybrid materials with steel and/or zinc and/or alloys thereof as metal component
US-2026070271-A1 · Mar 12, 2026 · US
containing also zinc cations
containing also 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 | C23C22/182 |
| Official title | {containing also zinc cations} |
| Display label | containing also zinc cations |
| Total patents | 30 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 6 |
| 2019 | 5 |
| 2020 | 1 |
| 2021 | 4 |
| 2022 | 3 |
| 2025 | 5 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of pre-treating metallic substrates
US-2026035802-A1 · Feb 5, 2026 · US
Phosphate-free cleaner for metallic surfaces with reduced pickling erosion
US-12460304-B2 · Nov 4, 2025 · US
Phosphate coating which can be substantially free of hexavalent chromium and methods of making the same
US-12365989-B2 · Jul 22, 2025 · US
Method for treating a part made of iron alloy for improving the anti-corrosion properties thereof
US-2025171906-A1 · May 29, 2025 · US
Surface Adjuster for Zinc Phosphate Chemical Conversion Treatment
US-2025059647-A1 · Feb 20, 2025 · US
Passivation composition based on trivalent chromium
US-12195856-B2 · Jan 14, 2025 · US
Method for specifically adjusting the electrical conductivity of conversion coatings
US-11492707-B2 · Nov 8, 2022 · US
Phosphate coating which can be substantially free of hexavalent chromium and methods of making the same
US-2022195604-A1 · Jun 23, 2022 · US
Phosphate-free cleaner for metallic surfaces with reduced pickling erosion
US-2022162760-A1 · May 26, 2022 · US
Method for ni-free phosphatizing of metal surfaces and composition for use in such a method
US-2021348277-A1 · Nov 11, 2021 · US
Method for ni-free phosphatizing of metal surfaces and composition for use in such a method
US-2021340676-A1 · Nov 4, 2021 · US
Method for nickel-free phosphating metal surfaces
US-11124880-B2 · Sep 21, 2021 · US
Passivation composition based on trivalent chromium
US-2021062344-A1 · Mar 4, 2021 · US
Method for nickel-free phosphating metal surfaces
US-10738383-B2 · Aug 11, 2020 · US
Treatment solution for chromium-free tension coating, method for forming chromium-free tension coating, and grain oriented electrical steel sheet with chromium-free tension coating
US-10458021-B2 · Oct 29, 2019 · US
Treatment solution for chromium-free tension coating, method for forming chromium-free tension coating, and grain oriented electrical steel sheet with chromium-free tension coating
US-10435791-B2 · Oct 8, 2019 · US
Improved method for nickel-free phosphating metal surfaces
US-2019127854-A1 · May 2, 2019 · US
Metal article having decorative graph-text and preparation method thereof
US-2019111728-A1 · Apr 18, 2019 · US
Pretreating zinc surfaces prior to a passivating process
US-10227686-B2 · Mar 12, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23C22/182?
- CPC C23C22/182 is the Cooperative Patent Classification code for “containing also zinc cations.”
- How many patents are filed under CPC C23C22/182 (containing also zinc cations)?
- Our database includes 30 publications tagged with this CPC code.
- Is patent activity under CPC C23C22/182 growing?
- Publication counts under this code: 3 in 2022 vs 5 in 2025 (latest complete years).