Method to produce high corrosion and wear resistant cast iron components by water jet surface activation, nitrocarburization and thermal spray coating
US-2024084430-A1 · Mar 14, 2024 · US
Flame spraying
Flame spraying · 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 | C23C4/129 |
| Official title | Flame spraying |
| Display label | Flame spraying |
| Total patents | 556 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 27 |
| 2016 | 45 |
| 2017 | 71 |
| 2018 | 49 |
| 2019 | 57 |
| 2020 | 59 |
| 2021 | 49 |
| 2022 | 53 |
| 2023 | 46 |
| 2024 | 54 |
| 2025 | 35 |
| 2026 | 11 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Composite thermal spray powder of oxides and non-oxides
US-2024059904-A1 · Feb 22, 2024 · US
Slotted ceramic coatings for improved CMAS resistance and methods of forming the same
US-11898497-B2 · Feb 13, 2024 · US
Impregnation of an hvof coating by a lubricant
US-2016369385-A1 · Dec 22, 2016 · US
Cylinder liner assembly having a thermal barrier coating
US-2016356239-A1 · Dec 8, 2016 · US
Surface Treatments of Metal Substrates
US-2016326624-A1 · Nov 10, 2016 · US
Thermal spray material, thermal spray coating and thermal spray coated article
US-2016326058-A1 · Nov 10, 2016 · US
Thermal Spray for Corrosion Protection
US-2016319417-A1 · Nov 3, 2016 · US
Bladed rotor
US-2016298468-A1 · Oct 13, 2016 · US
Integrated sintering process for microcracking and erosion resistance of thermal barriers
US-2016281206-A1 · Sep 29, 2016 · US
Deposition of Integrated Protective Material Into Zirconium Cladding for Nuclear Reactors by High-Velocity Thermal Application
US-2016254067-A1 · Sep 1, 2016 · US
Turbine abradable air seal system
US-2016251976-A1 · Sep 1, 2016 · US
Ceramic attachment configuration and method for manufacturing same
US-2016251972-A1 · Sep 1, 2016 · US
Device for hvof spraying process
US-2016251745-A1 · Sep 1, 2016 · US
Method of simultaneously applying three different diffusion aluminide coatings to a single part
US-2016222803-A1 · Aug 4, 2016 · US
Post-treatment method of film-coated member
US-2016222501-A1 · Aug 4, 2016 · US
Erosion and fatigue resistant blade and blade coating
US-9404172-B2 · Aug 2, 2016 · US
Reactive spray formation of coatings and powders
US-9399234-B2 · Jul 26, 2016 · US
Method for finishing a tubular threaded member with a dry protection coating
US-9395028-B2 · Jul 19, 2016 · US
Methods for coating gas turbine engine components
US-2016195272-A1 · Jul 7, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23C4/129?
- CPC C23C4/129 is the Cooperative Patent Classification code for “Flame spraying.”
- How many patents are filed under CPC C23C4/129 (Flame spraying)?
- Our database includes 556 publications tagged with this CPC code.
- Is patent activity under CPC C23C4/129 growing?
- Publication counts under this code: 54 in 2024 vs 35 in 2025 (latest complete years).