Optimized aerodynamic profile for a turbine vane, in particular for a nozzle of the third stage of a turbine
US-2018230808-A1 · Aug 16, 2018 · US
Nozzle boxes
Nozzle boxes · 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 | F01D9/047 |
| Official title | {Nozzle boxes} |
| Display label | Nozzle boxes |
| Total patents | 187 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 28 |
| 2017 | 15 |
| 2018 | 21 |
| 2019 | 21 |
| 2020 | 23 |
| 2021 | 19 |
| 2022 | 17 |
| 2023 | 15 |
| 2024 | 13 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Gas turbine engine airfoil curvature
US-9938854-B2 · Apr 10, 2018 · US
Crimped insert for improved turbine vane internal cooling
US-9879554-B2 · Jan 30, 2018 · US
Turbine vane hollow inner rail
US-9869200-B2 · Jan 16, 2018 · US
Hybrid nozzle segment assemblies for a gas turbine engine
US-9863260-B2 · Jan 9, 2018 · US
Steam turbine
US-9850781-B2 · Dec 26, 2017 · US
Nozzle structure and rotary machine
US-2017350264-A1 · Dec 7, 2017 · US
Converging flow joint insert system at an intersection between adjacent transitions extending between a combustor and a turbine assembly in a gas turbine engine
US-9803487-B2 · Oct 31, 2017 · US
Steam valve device and steam turbine plant
US-9790805-B2 · Oct 17, 2017 · US
Flowpath Assembly for a Gas Turbine Engine
US-2017284211-A1 · Oct 5, 2017 · US
Nozzle box assembly
US-2017234149-A1 · Aug 17, 2017 · US
Nozzle box assembly
US-2017204733-A1 · Jul 20, 2017 · US
Converging flow joint insert system at an intersection between adjacent transitions extending between a combustor and a turbine assembly in a gas turbine engine
US-2017114652-A1 · Apr 27, 2017 · US
Bulged nozzle for control of secondary flow and optimal diffuser performance
US-2017107835-A1 · Apr 20, 2017 · US
Turbine slotted arcuate leaf seal
US-2017107837-A1 · Apr 20, 2017 · US
Gas turbine engine with soft mounted pre-swirl nozzle
US-9605593-B2 · Mar 28, 2017 · US
Turbine nozzle components having reduced flow areas
US-9581035-B2 · Feb 28, 2017 · US
Cmc nozzles with split endwalls for gas turbine engines
US-2017051619-A1 · Feb 23, 2017 · US
Full arc admission steam turbine
US-9574454-B2 · Feb 21, 2017 · US
Bulged nozzle for control of secondary flow and optimal diffuser performance
US-2017002670-A1 · Jan 5, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01D9/047?
- CPC F01D9/047 is the Cooperative Patent Classification code for “Nozzle boxes.”
- How many patents are filed under CPC F01D9/047 (Nozzle boxes)?
- Our database includes 187 publications tagged with this CPC code.
- Is patent activity under CPC F01D9/047 growing?
- Publication counts under this code: 13 in 2024 vs 3 in 2025 (latest complete years).