Thermal shielding in a gas turbine
US-2018252109-A9 · Sep 6, 2018 · US
Inertia or friction welding
Inertia or friction welding · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F05D2230/239 |
| Official title | Inertia or friction welding |
| Display label | Inertia or friction welding |
| Total patents | 136 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 14 |
| 2017 | 22 |
| 2018 | 22 |
| 2019 | 23 |
| 2020 | 16 |
| 2021 | 9 |
| 2022 | 3 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 8 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Gas turbine engine fan blade with axial lean
US-2018231020-A1 · Aug 16, 2018 · US
Bladed disc and method of manufacturing the same
US-2018209280-A1 · Jul 26, 2018 · US
Turbine Rotor Blade Manufacturing Method
US-2018209026-A1 · Jul 26, 2018 · US
Bladed disc and method of manufacturing the same
US-2018209281-A1 · Jul 26, 2018 · US
Method for producing a blade for a turbomachine
US-2018154479-A1 · Jun 7, 2018 · US
Radial turbine with bonded single crystal blades
US-2018128109-A1 · May 10, 2018 · US
Hybrid bonded turbine rotors and methods for manufacturing the same
US-9951632-B2 · Apr 24, 2018 · US
Assembly method for the connection of a turbine wheel to a shaft
US-2018094646-A1 · Apr 5, 2018 · US
Method involving friction plug welding a flange
US-2018085867-A1 · Mar 29, 2018 · US
Gas turbine engine blade and disk
US-9896948-B2 · Feb 20, 2018 · US
Rotary friction welding
US-2018029157-A1 · Feb 1, 2018 · US
Method for friction welding a blade onto a turbine engine rotor disc; corresponding integral blade disc
US-9869189-B2 · Jan 16, 2018 · US
Method of making a centrifugal pump impeller
US-2017370373-A1 · Dec 28, 2017 · US
Forming a nacelle inlet for a turbine engine propulsion system
US-9845728-B2 · Dec 19, 2017 · US
Method for friction-welding a blade to a turbomachine vane, including a surfacing process
US-2017328225-A1 · Nov 16, 2017 · US
Manufacture of a drum for a gas turbine engine
US-2017320159-A1 · Nov 9, 2017 · US
Method for producing a blade for a turbomachine
US-2017314401-A1 · Nov 2, 2017 · US
Adjustable guide vane for turbomachine
US-2017268378-A1 · Sep 21, 2017 · US
Low hub-to-tip ratio fan for a turbofan gas turbine engine
US-2017268529-A1 · Sep 21, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F05D2230/239?
- CPC F05D2230/239 is the Cooperative Patent Classification code for “Inertia or friction welding.”
- How many patents are filed under CPC F05D2230/239 (Inertia or friction welding)?
- Our database includes 136 publications tagged with this CPC code.
- Is patent activity under CPC F05D2230/239 growing?
- Publication counts under this code: 3 in 2024 vs 8 in 2025 (latest complete years).