Process for creating refractory carbide parts by carburizing metal
US-2026092351-A1 · Apr 2, 2026 · US
Carburising
Carburising · 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 | C23C8/64 |
| Official title | Carburising |
| Display label | Carburising |
| Total patents | 29 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 5 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Laser-assisted reagent activation and property modification of self-passivating metals
US-2025297351-A1 · Sep 25, 2025 · US
Diamond film-deposited substrate and method for manufacturing diamond film-deposited substrate
US-2025277306-A1 · Sep 4, 2025 · US
Graphene coated components for superlubricity
US-2025122444-A1 · Apr 17, 2025 · US
Activation of self-passivating metals using reagent coatings for low temperature nitrocarburization
US-2024102143-A1 · Mar 28, 2024 · US
Activation of self-passivating metals using reagent coatings for low temperature nitrocarburization
US-11885027-B2 · Jan 30, 2024 · US
Tungsten wire, tungsten wire processing method using the same, and electrolyzed wire
US-2023366069-A1 · Nov 16, 2023 · US
Method for surface-modifying titanium alloy
US-11535924-B1 · Dec 27, 2022 · US
Activation of self-passivating metals using reagent coatings for low temperature nitrocarburization
US-2021340659-A1 · Nov 4, 2021 · US
Fuel cell separator
US-11069905-B2 · Jul 20, 2021 · US
Cutting tool
US-10995399-B2 · May 4, 2021 · US
Thermoelectric alloy, method for producing the same and thermoelectric alloy composite
US-10975456-B2 · Apr 13, 2021 · US
Method for producing fuel cell separator, and separator material
US-10923736-B2 · Feb 16, 2021 · US
Thermoelectric alloy, method for producing the same and thermoelectric alloy composite
US-2020123637-A1 · Apr 23, 2020 · US
Method for forming coating film having high heat resistance, high hardness and abrasion resistance, coating film having high heat resistance, high hardness and abrasion resistance, and cutting tool comprising same
US-10597781-B2 · Mar 24, 2020 · US
Methods Of Fabricating Ceramic Or Intermetallic Parts
US-2020047253-A1 · Feb 13, 2020 · US
Methods of fabricating ceramic or intermetallic parts
US-10471507-B2 · Nov 12, 2019 · US
Method for producing fuel cell separator, and separator material
US-2019190036-A1 · Jun 20, 2019 · US
Fuel cell separator
US-2019190035-A1 · Jun 20, 2019 · US
Roller cone drill bit with improved erosion resistance
US-9988854-B2 · Jun 5, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23C8/64?
- CPC C23C8/64 is the Cooperative Patent Classification code for “Carburising.”
- How many patents are filed under CPC C23C8/64 (Carburising)?
- Our database includes 29 publications tagged with this CPC code.
- Is patent activity under CPC C23C8/64 growing?
- Publication counts under this code: 2 in 2024 vs 3 in 2025 (latest complete years).