Method for coating a metallic surface
US-2019360106-A1 · Nov 28, 2019 · US
characterized by a measurable physical property of the alternating layer or system, e.g. thickness, density, hardness
characterized by a measurable physical property of the alternating layer or system, e.g. thickness, density, hardness · 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 | C23C28/44 |
| Official title | {characterized by a measurable physical property of the alternating layer or system, e.g. thickness, density, hardness} |
| Display label | characterized by a measurable physical property of the alternating layer or system, e.g. thickness, density, hardness |
| Total patents | 279 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 8 |
| 2017 | 9 |
| 2018 | 20 |
| 2019 | 34 |
| 2020 | 41 |
| 2021 | 37 |
| 2022 | 42 |
| 2023 | 19 |
| 2024 | 32 |
| 2025 | 18 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of producing blades or blade arrangements of a turbomachine with erosion protection layers and correspondingly produced component
US-10400613-B2 · Sep 3, 2019 · US
Surface-coated cutting tool
US-10384269-B2 · Aug 20, 2019 · US
Surface-coated cutting tool and method for manufacturing the same
US-2019232385-A1 · Aug 1, 2019 · US
Cutting tool and method for manufacturing the same
US-2019210117-A1 · Jul 11, 2019 · US
Composite article having layer with co-continuous material regions
US-10309018-B2 · Jun 4, 2019 · US
Information processing device and method, and program, for gamut conversion of content
US-10275904-B2 · Apr 30, 2019 · US
Surface-coated cutting tool and method for producing the same
US-10265785-B2 · Apr 23, 2019 · US
Coated cutting tool with h-aln and ti1-xalxcynz layers
US-2019111497-A1 · Apr 18, 2019 · US
Aluminum-iron alloy-coated steel sheet for hot press forming, having excellent hydrogen delayed fracture resistance, peeling resistance, and weldability and hot-formed member using same
US-2019003029-A1 · Jan 3, 2019 · US
Low dielectric constant oxide and low resistance op stack for 3d nand application
US-2018315592-A1 · Nov 1, 2018 · US
Surface-coated cutting tool and method of producing the same
US-10100403-B2 · Oct 16, 2018 · US
Coated cutting tool
US-2018281079-A1 · Oct 4, 2018 · US
MANUFACTURING METHOD OF SiC COMPOSITE SUBSTRATE
US-2018251910-A1 · Sep 6, 2018 · US
Hard coating and hard coating-covered member
US-2018243837-A1 · Aug 30, 2018 · US
Sliding member and piston ring
US-2018245200-A1 · Aug 30, 2018 · US
Coated cutting tool
US-2018236563-A1 · Aug 23, 2018 · US
Cutting tool comprising a multiple-ply pvd coating
US-2018223436-A1 · Aug 9, 2018 · US
Coated cutting tool
US-2018193924-A1 · Jul 12, 2018 · US
Coating
US-2018195161-A1 · Jul 12, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23C28/44?
- CPC C23C28/44 is the Cooperative Patent Classification code for “characterized by a measurable physical property of the alternating layer or system, e.g. thickness, density, hardness.”
- How many patents are filed under CPC C23C28/44 (characterized by a measurable physical property of the alternating layer or system, e.g. thickness, density, hardness)?
- Our database includes 279 publications tagged with this CPC code.
- Is patent activity under CPC C23C28/44 growing?
- Publication counts under this code: 32 in 2024 vs 18 in 2025 (latest complete years).