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
Chemistry & Metallurgy
Chemistry & Metallurgy · 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 | C23C4/06 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 690 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 46 |
| 2016 | 75 |
| 2017 | 78 |
| 2018 | 68 |
| 2019 | 77 |
| 2020 | 80 |
| 2021 | 61 |
| 2022 | 61 |
| 2023 | 49 |
| 2024 | 54 |
| 2025 | 33 |
| 2026 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Thermal spray powder and film that contain rare-earth element, and member provided with film
US-9528176-B2 · Dec 27, 2016 · US
Cylinder liner assembly having a thermal barrier coating
US-2016356239-A1 · Dec 8, 2016 · US
Bearing device and hydraulic machine
US-9512873-B2 · Dec 6, 2016 · US
Method of preventing oxidation of metals in thermal spraying
US-2016312349-A1 · Oct 27, 2016 · US
Gas turbine engine component coating with self-healing barrier layer
US-2016289844-A1 · Oct 6, 2016 · US
Additive Manufacturing
US-2016279703-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
Hardfacing compositions including ruthenium, earth-boring tools having such hardfacing, and related methods
US-9359827-B2 · Jun 7, 2016 · US
Steel Part and Method for Manufacturing the Same
US-2016138151-A1 · May 19, 2016 · US
Coating compositions, applications thereof, and methods of forming
US-9316341-B2 · Apr 19, 2016 · US
Method for coating sliding surface of high-temperature member, high-temperature member and electrode for electro-discharge surface treatment
US-9284647-B2 · Mar 15, 2016 · US
Piercing plug and manufacturing method of piercing plug
US-2016053358-A1 · Feb 25, 2016 · US
Coated aluminum alloy pigments and corrosion-resistant coatings
US-9243333-B2 · Jan 26, 2016 · US
Staredown to Produce Changes in Information Density and Type
US-2015379349-A1 · Dec 31, 2015 · US
Method for depositing layer
US-2015376762-A1 · Dec 31, 2015 · US
Method for depositing layer
US-2015368807-A1 · Dec 24, 2015 · US
Composite article having metal-containing layer with phase-specific seed particles and method therefor
US-2015354405-A1 · Dec 10, 2015 · US
Multilayer coatings systems and methods
US-2015322559-A1 · Nov 12, 2015 · US
High Strength Corrosion Resistant High Velocity Oxy Fuel (HVOF) Coating for Downhole Tools
US-2015322719-A1 · Nov 12, 2015 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23C4/06?
- CPC C23C4/06 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C23C4/06 (Chemistry & Metallurgy)?
- Our database includes 690 publications tagged with this CPC code.
- Is patent activity under CPC C23C4/06 growing?
- Publication counts under this code: 54 in 2024 vs 33 in 2025 (latest complete years).