Method for producing a sintered component with a toothing
US-12013022-B2 · Jun 18, 2024 · US
Carbo-nitriding
Carbo-nitriding · 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 | C23C8/30 |
| Official title | Carbo-nitriding |
| Display label | Carbo-nitriding |
| Total patents | 73 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 5 |
| 2017 | 6 |
| 2018 | 3 |
| 2019 | 8 |
| 2020 | 6 |
| 2021 | 10 |
| 2022 | 7 |
| 2023 | 8 |
| 2024 | 7 |
| 2025 | 6 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Activation of self-passivating metals using reagent coatings for low temperature nitrocarburization
US-11885027-B2 · Jan 30, 2024 · US
Rolling member and rolling bearing
US-2023383790-A1 · Nov 30, 2023 · US
Surface treatment for a wellbore drill bit
US-11761049-B1 · Sep 19, 2023 · US
Steel component
US-2023212731-A1 · Jul 6, 2023 · US
Steel and steel component
US-2023193414-A1 · Jun 22, 2023 · US
Chemical activation of self-passivating metals
US-11649538-B2 · May 16, 2023 · US
Anti-scale deposition hierarchical coatings for wellbore applications
US-11643730-B2 · May 9, 2023 · US
Metal surface layer treating method, metal assembly and electronic device
US-2023097354-A1 · Mar 30, 2023 · US
Method for producing a sintered component
US-11590571-B2 · Feb 28, 2023 · US
Method for producing a sintered component with a toothing
US-2022390000-A1 · Dec 8, 2022 · US
Activation of self-passivating metals using reagent coatings for low temperature nitrocarburization in the presence of oxygen-containing gas
US-2022364216-A1 · Nov 17, 2022 · US
Case hardened titanium parts and method for making the same
US-11492691-B2 · Nov 8, 2022 · US
Method for hardening a sintered component
US-11479843-B2 · Oct 25, 2022 · US
Core for high-temperature shaping of a metal part and manufacturing, regeneration and shaping process
US-2022268162-A1 · Aug 25, 2022 · US
Method for hardening a sintered component
US-2022074036-A1 · Mar 10, 2022 · US
Chemical activation of self-passivating metals
US-2022064778-A1 · Mar 3, 2022 · US
Chemical activation of self-passivating metals
US-11193197-B2 · Dec 7, 2021 · US
Activation of self-passivating metals using reagent coatings for low temperature nitrocarburization
US-2021340659-A1 · Nov 4, 2021 · US
Methods for manufacturing a drum and a spring brake for an electromechanical actuator, associated electromechanical actuator and home automation installation
US-11149492-B2 · Oct 19, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23C8/30?
- CPC C23C8/30 is the Cooperative Patent Classification code for “Carbo-nitriding.”
- How many patents are filed under CPC C23C8/30 (Carbo-nitriding)?
- Our database includes 73 publications tagged with this CPC code.
- Is patent activity under CPC C23C8/30 growing?
- Publication counts under this code: 7 in 2024 vs 6 in 2025 (latest complete years).