Environment-friendly water-based treatment agent for improving phosphatability of high-strength steel
US-2026055511-A1 · Feb 26, 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 | C23C22/362 |
| Official title | {containing also zinc cations} |
| Display label | containing also zinc cations |
| Total patents | 25 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 5 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Multi-stage treatment for activated zinc phosphating of metallic components
US-2025354269-A1 · Nov 20, 2025 · US
Aqueous dispersion for activating a metal surface and method for the phosphating thereof
US-12203172-B2 · Jan 21, 2025 · US
Multi-stage treatment for activated zinc phosphatizing of metallic components with zinc surfaces
US-2024271289-A1 · Aug 15, 2024 · US
One-stage process for zinc phosphating
US-2023220559-A1 · Jul 13, 2023 · US
Resource-saving method for zinc phosphating of a metal surface
US-2023175138-A1 · Jun 8, 2023 · US
Method for specifically adjusting the electrical conductivity of conversion coatings
US-11492707-B2 · Nov 8, 2022 · US
Method for zinc phosphating metal components in series so as to form layers
US-11486044-B2 · Nov 1, 2022 · US
Method for zinc phosphating metal components in series in a sludge-free manner so as to form layers
US-11479865-B2 · Oct 25, 2022 · US
Resource-saving method for activating a metal surface prior to phosphating
US-2022290303-A1 · Sep 15, 2022 · US
Resource-saving method for activating a metal surface prior to phosphating
US-2022282381-A1 · Sep 8, 2022 · US
Method for nickel-free phosphating metal surfaces
US-11124880-B2 · Sep 21, 2021 · US
Aqueous dispersion for activating a metal surface and method for the phosphating thereof
US-2021087693-A1 · Mar 25, 2021 · US
Process for selective phosphating of a composite metal construction
US-2021062346-A1 · Mar 4, 2021 · US
Method for nickel-free phosphating metal surfaces
US-10738383-B2 · Aug 11, 2020 · US
Method for zinc phosphating metal components in series so as to form layers
US-2020032403-A1 · Jan 30, 2020 · US
Method for zinc phosphating metal components in series in a sludge-free manner so as to form layers
US-2020032402-A1 · Jan 30, 2020 · US
Improved method for nickel-free phosphating metal surfaces
US-2019127854-A1 · May 2, 2019 · US
Sheet steel with a conversion coating, method of producing conversion-coated sheet steel and treatment agent for application of a conversion coating on sheet steel
US-2019032222-A1 · Jan 31, 2019 · US
Method for specifically adjusting the electrical conductivity of conversion coatings
US-2018334748-A9 · Nov 22, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23C22/362?
- CPC C23C22/362 is the Cooperative Patent Classification code for “containing also zinc cations.”
- How many patents are filed under CPC C23C22/362 (containing also zinc cations)?
- Our database includes 25 publications tagged with this CPC code.
- Is patent activity under CPC C23C22/362 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).