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US-2026049386-A1 · Feb 19, 2026 · US
Diffusion into selected surface areas, e.g. using masks
Diffusion into selected surface areas, e.g. using masks · 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 | C23C10/04 |
| Official title | Diffusion into selected surface areas, e.g. using masks |
| Display label | Diffusion into selected surface areas, e.g. using masks |
| Total patents | 53 |
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 | 3 |
| 2016 | 7 |
| 2017 | 10 |
| 2018 | 8 |
| 2019 | 5 |
| 2020 | 5 |
| 2022 | 5 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Masking Systems
US-2025262640-A1 · Aug 21, 2025 · US
Cyclic low temperature film growth processes
US-2025095983-A1 · Mar 20, 2025 · US
Cyclic low temperature film growth processes
US-12176204-B2 · Dec 24, 2024 · US
Turbine Airfoil Coating
US-2024418091-A1 · Dec 19, 2024 · US
Airfoil External Masking For Internal Aluminization
US-2024344192-A1 · Oct 17, 2024 · US
Line-of-sight coating fixture and apparatus
US-11702732-B2 · Jul 18, 2023 · US
Cyclic Low Temperature Film Growth Processes
US-2023154745-A1 · May 18, 2023 · US
Method for coating a component of an aircraft engine with a wear-resistant layer, and component for an aircraft engine with at least one wear-resistant layer
US-2023127445-A1 · Apr 27, 2023 · US
Cyclic low temperature film growth processes
US-11605536-B2 · Mar 14, 2023 · US
Method for coating a component for the hot gas duct of a turbomachine
US-11359289-B2 · Jun 14, 2022 · US
Line-of-sight coating fixture and apparatus
US-2022162745-A1 · May 26, 2022 · US
Cyclic low temperature film growth processes
US-2022093395-A1 · Mar 24, 2022 · US
Diffusion surface alloyed metal exhaust component with inwardly turned edges
US-11268429-B2 · Mar 8, 2022 · US
Diffusion surface alloyed metal exhaust component with welded edges
US-11268430-B2 · Mar 8, 2022 · US
Systems and methods for tailored microstructures using templated grain nucleation
US-10822688-B2 · Nov 3, 2020 · US
Article with improved coating system and methods of forming the same
US-10781526-B2 · Sep 22, 2020 · US
Diffusion Surface Alloyed Metal Exhaust Component
US-2020232376-A1 · Jul 23, 2020 · US
Diffusion Surface Alloyed Metal Exhaust Component With Inwardly Turned Edges
US-2020232377-A1 · Jul 23, 2020 · US
Diffusion Surface Alloyed Metal Exhaust Component With Welded Edges
US-2020232378-A1 · Jul 23, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23C10/04?
- CPC C23C10/04 is the Cooperative Patent Classification code for “Diffusion into selected surface areas, e.g. using masks.”
- How many patents are filed under CPC C23C10/04 (Diffusion into selected surface areas, e.g. using masks)?
- Our database includes 53 publications tagged with this CPC code.
- Is patent activity under CPC C23C10/04 growing?
- Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).