Method of surface micro-texturing with a subtractive agent
US-2020255955-A1 · Aug 13, 2020 · US
Chemical milling
Chemical milling · 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 | C23F1/04 |
| Official title | Chemical milling |
| Display label | Chemical milling |
| Total patents | 129 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 15 |
| 2017 | 9 |
| 2018 | 10 |
| 2019 | 9 |
| 2020 | 13 |
| 2021 | 12 |
| 2022 | 16 |
| 2023 | 17 |
| 2024 | 10 |
| 2025 | 9 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Metal plate for deposition mask, and deposition mask and manufacturing method therefor
US-10727409-B2 · Jul 28, 2020 · US
Needle with rounded edge
US-2020180180-A1 · Jun 11, 2020 · US
Chemically sharpening blades
US-2020139567-A1 · May 7, 2020 · US
Manufacturing method for deposition mask, metal plate used for producing deposition mask, and manufacturing method for said metal sheet
US-10612124-B2 · Apr 7, 2020 · US
Silencing device, rotary machine, and method for manufacturing silencing device
US-2020096007-A1 · Mar 26, 2020 · US
Dose-based end-pointing for low-kv fib milling in tem sample preparation
US-2020095688-A1 · Mar 26, 2020 · US
Metal plate, method of manufacturing metal plate, and method of manufacturing mask by using metal plate
US-10600963-B2 · Mar 24, 2020 · US
Manufacturing method for deposition mask, metal plate used for producing deposition mask, and manufacturing method for said metal sheet
US-10570498-B2 · Feb 25, 2020 · US
Heat Transfer During Ablation Procedures
US-2020054390-A1 · Feb 20, 2020 · US
Chemically Sharpening Blades
US-2020023534-A1 · Jan 23, 2020 · US
Chemically sharpened blades
US-10500748-B2 · Dec 10, 2019 · US
Chemically sharpening blades
US-10478984-B2 · Nov 19, 2019 · US
Dose-based end-pointing for low-kV FIB milling TEM sample preparation
US-10465293-B2 · Nov 5, 2019 · US
Toughened bond layer and method of production
US-10414694-B2 · Sep 17, 2019 · US
Metal plate for deposition mask, and deposition mask and manufacturing method therefor
US-2019259951-A1 · Aug 22, 2019 · US
Closed chamber abrasive flow machine systems and methods
US-2019202023-A1 · Jul 4, 2019 · US
Light weight housing for internal component and method of making
US-10335850-B2 · Jul 2, 2019 · US
Manufacturing method for deposition mask, metal plate used for producing deposition mask, and manufacturing method for said metal sheet
US-2019161848-A1 · May 30, 2019 · US
Mask for thin film deposition, and fabrication method thereof
US-2019081241-A1 · Mar 14, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23F1/04?
- CPC C23F1/04 is the Cooperative Patent Classification code for “Chemical milling.”
- How many patents are filed under CPC C23F1/04 (Chemical milling)?
- Our database includes 129 publications tagged with this CPC code.
- Is patent activity under CPC C23F1/04 growing?
- Publication counts under this code: 10 in 2024 vs 9 in 2025 (latest complete years).