Manufacturing method of aluminum-based article with multi-angle visual color change characteristics
US-2024344229-A1 · Oct 17, 2024 · US
Chemical after-treatment
Chemical after-treatment · 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 | C25D11/24 |
| Official title | Chemical after-treatment |
| Display label | Chemical after-treatment |
| Total patents | 313 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 35 |
| 2016 | 39 |
| 2017 | 47 |
| 2018 | 33 |
| 2019 | 30 |
| 2020 | 27 |
| 2021 | 28 |
| 2022 | 18 |
| 2023 | 17 |
| 2024 | 23 |
| 2025 | 13 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for performing electropolishing treatment on aluminum material
US-2016376725-A1 · Dec 29, 2016 · US
Producing Passive Radiative Cooling Panels And Modules
US-2016362807-A1 · Dec 15, 2016 · US
Mold production method
US-9512535-B2 · Dec 6, 2016 · US
Methods for forming white anodized films by metal complex infusion
US-9512536-B2 · Dec 6, 2016 · US
Method for improving the electrical parameters in capacitors containing PEDOT/PSS as a solid electrolyte by polyglycerol
US-9502183-B2 · Nov 22, 2016 · US
Anodized films with branched pore structures
US-9487879-B2 · Nov 8, 2016 · US
Heat exchange device
US-2016320144-A1 · Nov 3, 2016 · US
Method for forming heat-shielding film and heat-shielding film structure
US-2016305037-A1 · Oct 20, 2016 · US
Mold, mold manufacturing method and method for manufacturing anti-reflection film using the mold
US-9469056-B2 · Oct 18, 2016 · US
Method for manufacturing aluminum plate, aluminum plate, collector for storage device, and storage device
US-2016294002-A1 · Oct 6, 2016 · US
Optical element molding die and method for molding optical element
US-9452571-B2 · Sep 27, 2016 · US
Processes to reduce interfacial enrichment of alloying elements under anodic oxide films and improve anodized appearance of heat treatable alloys
US-2016237586-A1 · Aug 18, 2016 · US
X-Ray Metal Grating Structure Manufacturing Method And X-Ray Imaging Device
US-2016233002-A1 · Aug 11, 2016 · US
Method for forming anodized layer, method for producing mold, method for producing antireflective film, and mold and antireflective film
US-9403293-B2 · Aug 2, 2016 · US
Golf club heads with protective layer and methods of manufacturing the golf club heads
US-2016193507-A1 · Jul 7, 2016 · US
Frost free surfaces and method for manufacturing the same
US-9371595-B2 · Jun 21, 2016 · US
Metal-and-resin composite and method for making the same
US-2016160371-A1 · Jun 9, 2016 · US
Processes to reduce interfacial enrichment of alloying elements under anodic oxide films and improve anodized appearance of heat treatable alloys
US-9359686-B1 · Jun 7, 2016 · US
Electrode structure, substrate holder, and method for forming anodic oxidation layer
US-9315916-B2 · Apr 19, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C25D11/24?
- CPC C25D11/24 is the Cooperative Patent Classification code for “Chemical after-treatment.”
- How many patents are filed under CPC C25D11/24 (Chemical after-treatment)?
- Our database includes 313 publications tagged with this CPC code.
- Is patent activity under CPC C25D11/24 growing?
- Publication counts under this code: 23 in 2024 vs 13 in 2025 (latest complete years).