Titanium material and method for producing titanium material
US-9487882-B2 · Nov 8, 2016 · US
After-treatment
After-treatment · 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 | C23C8/80 |
| Official title | After-treatment |
| Display label | After-treatment |
| Total patents | 732 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 58 |
| 2016 | 55 |
| 2017 | 78 |
| 2018 | 65 |
| 2019 | 79 |
| 2020 | 84 |
| 2021 | 62 |
| 2022 | 78 |
| 2023 | 51 |
| 2024 | 67 |
| 2025 | 45 |
| 2026 | 10 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fatigue test specimen
US-9389155-B1 · Jul 12, 2016 · US
Iron nitride permanent magnet and technique for forming iron nitride permanent magnet
US-2015380135-A1 · Dec 31, 2015 · US
Apparatus and method for nitriding grain-oriented electrical steel sheet
US-2015354051-A1 · Dec 10, 2015 · US
Bearing part, rolling bearing, and methods of manufacturing them
US-9206490-B2 · Dec 8, 2015 · US
Manufacturing process of a structural component for a motor vehicle, plate bar for hot forming and structural component
US-9200358-B2 · Dec 1, 2015 · US
Steel for machine structural use, manufacturing method for same, case hardened steel component, and manufacturing method for same
US-9200357-B2 · Dec 1, 2015 · US
Production method for grain-oriented electrical steel sheet and primary recrystallized steel sheet for production of grain-oriented electrical steel sheet
US-2015318092-A1 · Nov 5, 2015 · US
Method of manufacturing grain-oriented electrical steel sheet
US-9175362-B2 · Nov 3, 2015 · US
Anticoking catalyst coatings with alumina barrier layer
US-2015306558-A1 · Oct 29, 2015 · US
Production method for grain-oriented electrical steel sheet
US-2015299819-A1 · Oct 22, 2015 · US
Oriented Silicon Steel and Method for Manufacturing Same
US-2015302962-A1 · Oct 22, 2015 · US
Catalyst for direct decomposition of nitric oxide and method of manufacturing the catalyst
US-9162216-B2 · Oct 20, 2015 · US
Method of making enhanced surface coating for light metal workpiece
US-2015284835-A1 · Oct 8, 2015 · US
Method Of Making Corrosion Resistant And Glossy Appearance Coating For Light Metal Workpiece
US-2015284836-A1 · Oct 8, 2015 · US
Helical compression spring and method for manufacturing same
US-2015252863-A1 · Sep 10, 2015 · US
Chain element and method for the production thereof
US-2015247553-A1 · Sep 3, 2015 · US
Method of manufacturing machine component
US-2015240342-A1 · Aug 27, 2015 · US
Method & steel component
US-2015240341-A1 · Aug 27, 2015 · US
Chain element, chain pin, and method for producing same
US-2015233447-A1 · Aug 20, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C23C8/80?
- CPC C23C8/80 is the Cooperative Patent Classification code for “After-treatment.”
- How many patents are filed under CPC C23C8/80 (After-treatment)?
- Our database includes 732 publications tagged with this CPC code.
- Is patent activity under CPC C23C8/80 growing?
- Publication counts under this code: 67 in 2024 vs 45 in 2025 (latest complete years).