Thin corrosion protective coatings incorporating polyamidoamine polymers
US-2025340753-A1 · Nov 6, 2025 · US
containing hexavalent chromium compounds
containing hexavalent chromium compounds · 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 | C23C22/24 |
| Official title | containing hexavalent chromium compounds |
| Display label | containing hexavalent chromium compounds |
| Total patents | 66 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 2 |
| 2017 | 6 |
| 2018 | 8 |
| 2019 | 3 |
| 2020 | 2 |
| 2021 | 13 |
| 2022 | 6 |
| 2023 | 5 |
| 2024 | 3 |
| 2025 | 11 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Maskless touch up tool for surface coatings
US-2025320594-A1 · Oct 16, 2025 · US
Thin corrosion protective coatings incorporating polyamidoamine polymers
US-12365812-B2 · Jul 22, 2025 · US
Method for the cleaning and/or anti-corrosion pretreatment of a plurality of components comprising zinc-coated (ZM) steel
US-12234561-B2 · Feb 25, 2025 · US
Coating liquid for forming insulation coating for grain-oriented electrical steel sheet, method of manufacturing grain-oriented electrical steel sheet, and grain-oriented electrical steel sheet
US-2025043373-A1 · Feb 6, 2025 · US
Coating liquid for forming insulation coating for grain-oriented electrical steel sheet, method of manufacturing grain-oriented electrical steel sheet, and grain-oriented electrical steel sheet
US-12157921-B2 · Dec 3, 2024 · US
Method for the cleaning and/or anti-corrosion pretreatment of a plurality of components comprising zinc-coated (zm) steel
US-2024263315-A1 · Aug 8, 2024 · US
Metal-carbon fiber reinforced resin material composite and method for manufacturing metal-carbon fiber reinforced resin material composite
US-11969969-B2 · Apr 30, 2024 · US
Aluminum and aluminum alloy electroplated coatings
US-2023392275-A1 · Dec 7, 2023 · US
High-design sliding member
US-11788191-B2 · Oct 17, 2023 · US
Aluminum and aluminum alloy electroplated coatings
US-11661665-B2 · May 30, 2023 · US
Covers for electronic devices
US-2023031605-A1 · Feb 2, 2023 · US
Rechargeable battery
US-11545709-B2 · Jan 3, 2023 · US
Method for Manufacturing Electrode Lead and Pouch Type Secondary Battery
US-2022393316-A1 · Dec 8, 2022 · US
Surface-treated copper foil, copper foil having carrier, laminated material, method for producing printed wiring board, and method for producing electronic apparatus
US-11401612-B2 · Aug 2, 2022 · US
Electronic device housing, manufacturing method of same, and metal-resin composite
US-2022224001-A1 · Jul 14, 2022 · US
Metal-carbon fiber reinforced resin material composite and method for manufacturing metal-carbon fiber reinforced resin material composite
US-2022161521-A1 · May 26, 2022 · US
Stainless steel structure excellent in hydrogen embrittlement resistance and corrosion resistance and method for manufacturing the same
US-2022042175-A1 · Feb 10, 2022 · US
Method for manufacturing cover member, and cover member structure
US-2022004231-A1 · Jan 6, 2022 · US
Rechargeable battery
US-2021399373-A1 · Dec 23, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23C22/24?
- CPC C23C22/24 is the Cooperative Patent Classification code for “containing hexavalent chromium compounds.”
- How many patents are filed under CPC C23C22/24 (containing hexavalent chromium compounds)?
- Our database includes 66 publications tagged with this CPC code.
- Is patent activity under CPC C23C22/24 growing?
- Publication counts under this code: 3 in 2024 vs 11 in 2025 (latest complete years).