Bicycle gear and method for manufacturing such a gear
US-2018334755-A1 · Nov 22, 2018 · US
Electrolytic after-treatment
Electrolytic 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 | C25D11/20 |
| Official title | Electrolytic after-treatment |
| Display label | Electrolytic after-treatment |
| Total patents | 122 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 22 |
| 2017 | 18 |
| 2018 | 9 |
| 2019 | 16 |
| 2020 | 10 |
| 2021 | 7 |
| 2022 | 9 |
| 2023 | 6 |
| 2024 | 9 |
| 2025 | 1 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Low friction slide member
US-2018335078-A1 · Nov 22, 2018 · US
Aluminum alloy housing and preparation method thereof
US-2018305838-A1 · Oct 25, 2018 · US
Method of sealing an anodized metal article
US-2018274121-A1 · Sep 27, 2018 · US
Aluminum plate and method for manufacturing aluminum plate
US-2018166690-A1 · Jun 14, 2018 · US
Method for producing conductive polymer and method for producing solid electrolyte capacitor
US-2018051131-A1 · Feb 22, 2018 · US
Aluminum plate and collector for storage device
US-2018013148-A1 · Jan 11, 2018 · US
Method for controlled growth of carbon nanotubes in a vertically aligned array
US-2017342550-A1 · Nov 30, 2017 · US
Method for producing conductive polymer and method for producing solid electrolyte capacitor
US-9828460-B2 · Nov 28, 2017 · US
Mask and Masking Assembly
US-2017309868-A1 · Oct 26, 2017 · US
Microstructure, multilayer wiring board, semiconductor package and microstructure manufacturing method
US-9799594-B2 · Oct 24, 2017 · US
Method of making corrosion resistant and glossy appearance coating for light metal workpiece
US-9797036-B2 · Oct 24, 2017 · US
Process for enhanced corrosion protection of anodized aluminum
US-2017292202-A1 · Oct 12, 2017 · US
Electrophoretic deposition fluid, metal core substrate, and method for fabricating the metal core substrate
US-2017292029-A1 · Oct 12, 2017 · US
Surface structure of aluminum-based member
US-2017254294-A1 · Sep 7, 2017 · US
Metal surface and process for treating a metal surface
US-2017253986-A1 · Sep 7, 2017 · US
Aluminum plate and method for manufacturing aluminum plate
US-2017214059-A1 · Jul 27, 2017 · US
Aluminum plate
US-2017200568-A1 · Jul 13, 2017 · US
Anodization architecture for electro-plate adhesion
US-2017175284-A1 · Jun 22, 2017 · US
Metal surface and process for treating a metal surface
US-9683305-B2 · Jun 20, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C25D11/20?
- CPC C25D11/20 is the Cooperative Patent Classification code for “Electrolytic after-treatment.”
- How many patents are filed under CPC C25D11/20 (Electrolytic after-treatment)?
- Our database includes 122 publications tagged with this CPC code.
- Is patent activity under CPC C25D11/20 growing?
- Publication counts under this code: 9 in 2024 vs 1 in 2025 (latest complete years).