Etchant and method of surface treatment of aluminum or aluminum alloy
US-12454760-B2 · Oct 28, 2025 · US
by chemical pretreatment
by chemical pretreatment · 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 | C23C18/1824 |
| Official title | {by chemical pretreatment} |
| Display label | by chemical pretreatment |
| Total patents | 28 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 2 |
| 2023 | 7 |
| 2024 | 2 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of manufacturing interior parts for a vehicle
US-2025066925-A1 · Feb 27, 2025 · US
System and method for performing localized electroless nickel plating
US-2025051926-A1 · Feb 13, 2025 · US
Laminate
US-12031213-B2 · Jul 9, 2024 · US
A process for electrochemical deposition of copper with different current densities
US-2024183052-A1 · Jun 6, 2024 · US
Etchant and method of surface treatment of aluminum or aluminum alloy
US-2023407487-A1 · Dec 21, 2023 · US
Applying coatings to the interior surfaces of heat exchangers
US-11835307-B2 · Dec 5, 2023 · US
Substrate liquid processing apparatus, substrate liquid processing method and recording medium
US-11795546-B2 · Oct 24, 2023 · US
Metal displacement solution, method for surface treatment of aluminum or aluminum alloy
US-2023151493-A1 · May 18, 2023 · US
Anti-scale deposition hierarchical coatings for wellbore applications
US-11643730-B2 · May 9, 2023 · US
Method for coating steel sheets or steel strips and method for producing press-hardened components therefrom
US-11613791-B2 · Mar 28, 2023 · US
Coated substrate support assembly for substrate processing
US-2023009692-A1 · Jan 12, 2023 · US
Laminate and method for producing same
US-2022235468-A1 · Jul 28, 2022 · US
Substrate processing method and substrate processing apparatus
US-2022112603-A1 · Apr 14, 2022 · US
Applying coatings to the interior surfaces of heat exchangers
US-2021404754-A1 · Dec 30, 2021 · US
Applying coatings to the interior surfaces of heat exchangers
US-11054199-B2 · Jul 6, 2021 · US
Substrate liquid processing apparatus, substrate liquid processing method and recording medium
US-2021002770-A1 · Jan 7, 2021 · US
Anti-Scale Deposition Hierarchical Coatings for Wellbore Applications
US-2020407852-A1 · Dec 31, 2020 · US
Applying Coatings To The Interior Surfaces Of Heat Exchangers
US-2020326145-A1 · Oct 15, 2020 · US
Method for coating steel sheets or steel strips and method for producing press-hardened components therefrom
US-2020232057-A1 · Jul 23, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23C18/1824?
- CPC C23C18/1824 is the Cooperative Patent Classification code for “by chemical pretreatment.”
- How many patents are filed under CPC C23C18/1824 (by chemical pretreatment)?
- Our database includes 28 publications tagged with this CPC code.
- Is patent activity under CPC C23C18/1824 growing?
- Publication counts under this code: 2 in 2024 vs 3 in 2025 (latest complete years).