Zinc-based plated steel sheet having post-treated coating formed thereon and post-treatment method therefor
US-2020399750-A1 · Dec 24, 2020 · US
Treatment of zinc or alloys based thereon
Treatment of zinc or alloys based thereon · 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 | C23C22/53 |
| Official title | Treatment of zinc or alloys based thereon |
| Display label | Treatment of zinc or alloys based thereon |
| Total patents | 96 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 8 |
| 2017 | 6 |
| 2018 | 15 |
| 2019 | 13 |
| 2020 | 13 |
| 2021 | 8 |
| 2022 | 6 |
| 2023 | 5 |
| 2024 | 4 |
| 2025 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Metal sheet with zinc hydroxysulfate/zinc sulfate-based protection layer
US-2020318252-A1 · Oct 8, 2020 · US
Metal sheet treatment method and metal sheet treated with this method
US-2020299844-A1 · Sep 24, 2020 · US
Two-step pretreatment system and method
US-2020248313-A1 · Aug 6, 2020 · US
Conversion coating and method of making
US-10676828-B2 · Jun 9, 2020 · US
Conversion coating composition comprising a dye and a method for coating a metal surface with said conversion coating composition
US-10570519-B2 · Feb 25, 2020 · US
Aqueous acidic composition for treating metal surfaces, treating method using this composition and use of treated metal surface
US-2020048775-A1 · Feb 13, 2020 · US
Sealing Composition
US-2019316261-A1 · Oct 17, 2019 · US
Treatment of conversion-coated metal substrates with preformed reaction products of catechol compounds and functionalized co-reactant compounds
US-2019292402-A1 · Sep 26, 2019 · US
Surface-treatment solution composition containing trivalent chromium and inorganic compound, zinc-based plated steel sheet surface-treated using same, and method for producing same
US-2019264334-A1 · Aug 29, 2019 · US
Galvanized steel sheet and method for producing the same
US-10392706-B2 · Aug 27, 2019 · US
Galvanized steel sheet and method for producing the same
US-10351960-B2 · Jul 16, 2019 · US
Metal sheet having oiled zn-al-mg coatings
US-2019169754-A1 · Jun 6, 2019 · US
Metal Sheet Assembly having Zn-Al-Mg Coatings, an Acid Solution Application and an Adhesive
US-2019105889-A1 · Apr 11, 2019 · US
Surface treatment agent for metal material and production method for surface-treated metal material
US-10253416-B2 · Apr 9, 2019 · US
Black coupling member for vehicles, having excellent corrosion resistance and black appearance
US-10240237-B2 · Mar 26, 2019 · US
Conversion-coated metal plate, surface-treated metal plate, composite member, and method for producing conversion-coated metal plate
US-2019084274-A1 · Mar 21, 2019 · US
Method for Producing a Steel Product with a Zn Coating and a Tribologically Active Layer Deposited on the Coating, and a Steel Product Produced According to Said Method
US-2019024240-A1 · Jan 24, 2019 · US
Fluoride-free zirconium-based metal pre-treatment for passivation
US-2019010610-A1 · Jan 10, 2019 · US
Method and apparatus for structural coloration of metallic surfaces
US-10167560-B2 · Jan 1, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23C22/53?
- CPC C23C22/53 is the Cooperative Patent Classification code for “Treatment of zinc or alloys based thereon.”
- How many patents are filed under CPC C23C22/53 (Treatment of zinc or alloys based thereon)?
- Our database includes 96 publications tagged with this CPC code.
- Is patent activity under CPC C23C22/53 growing?
- Publication counts under this code: 4 in 2024 vs 7 in 2025 (latest complete years).