Electronic device including plate, plate, and method for manufacturing plate
US-12501568-B2 · Dec 16, 2025 · US
for colouring layers
for colouring layers · 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 | C25D11/22 |
| Official title | for colouring layers |
| Display label | for colouring layers |
| Total patents | 63 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 4 |
| 2017 | 8 |
| 2018 | 6 |
| 2019 | 7 |
| 2020 | 7 |
| 2021 | 3 |
| 2022 | 7 |
| 2023 | 8 |
| 2024 | 2 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Deep-colored housing and electronic device comprising same
US-2025113451-A1 · Apr 3, 2025 · US
Manufacturing method of aluminum-based article with multi-angle visual color change characteristics
US-2024344229-A1 · Oct 17, 2024 · US
Surface treatment method of aluminum material
US-2024035188-A1 · Feb 1, 2024 · US
Aluminum alloy fastening member and method for producing aluminum alloy fastening member
US-11807943-B2 · Nov 7, 2023 · US
Electronic device and method for manufacturing housing of electronic device
US-2023295826-A1 · Sep 21, 2023 · US
Electronic device and electronic device housing structure
US-2023209757-A1 · Jun 29, 2023 · US
Aluminum alloy member and method for manufacturing same
US-2023175159-A1 · Jun 8, 2023 · US
Housing of electronic device and method for manufacturing the same
US-2023106005-A1 · Apr 6, 2023 · US
Electronic device frame and electronic device including the same
US-2023028842-A1 · Jan 26, 2023 · US
Covers for electronic devices
US-2023015912-A1 · Jan 19, 2023 · US
Electronic device including plate, plate, and method for manufacturing plate
US-2023007798-A1 · Jan 5, 2023 · US
Electronic device including housing
US-2022408582-A1 · Dec 22, 2022 · US
Optical member and production method therefor
US-2022397704-A1 · Dec 15, 2022 · US
Method of providing a coloured, anodised aluminium surface
US-11505875-B2 · Nov 22, 2022 · US
Support frame for pellicles, pellicle, and method for manufacturing same
US-11360381-B2 · Jun 14, 2022 · US
Colored multilayer oxide coatings
US-11352708-B2 · Jun 7, 2022 · US
Coated Metal Alloy Substrate with at least one Chamfered Edge and Process for Production Thereof
US-2022162766-A1 · May 26, 2022 · US
Multi-color electronic housings
US-2022145488-A1 · May 12, 2022 · US
Cosmetic anodic oxide coatings
US-11131036-B2 · Sep 28, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C25D11/22?
- CPC C25D11/22 is the Cooperative Patent Classification code for “for colouring layers.”
- How many patents are filed under CPC C25D11/22 (for colouring layers)?
- Our database includes 63 publications tagged with this CPC code.
- Is patent activity under CPC C25D11/22 growing?
- Publication counts under this code: 2 in 2024 vs 4 in 2025 (latest complete years).