Turbocharger Turbine Rotor and Turbocharger
US-2020408143-A1 · Dec 31, 2020 · US
for flow machines or engines with only one axial stage (for more than one stage F01D5/06)
for flow machines or engines with only one axial stage (for more than one stage F01D5/06) · 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 | F01D5/021 |
| Official title | {for flow machines or engines with only one axial stage (for more than one stage F01D5/06)} |
| Display label | for flow machines or engines with only one axial stage (for more than one stage F01D5/06) |
| Total patents | 118 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 10 |
| 2017 | 8 |
| 2018 | 13 |
| 2019 | 7 |
| 2020 | 15 |
| 2021 | 7 |
| 2022 | 13 |
| 2023 | 10 |
| 2024 | 11 |
| 2025 | 12 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Turbofan comprising a set of rotatable blades for blocking off the bypass flow duct
US-2020325785-A1 · Oct 15, 2020 · US
Ram air turbine shaft whirl damper
US-2020309091-A1 · Oct 1, 2020 · US
Combined overspeed, feathering, and reverse enabler control valve for a propeller assembly
US-2020298959-A1 · Sep 24, 2020 · US
Axial Flow Turbine
US-2020277870-A1 · Sep 3, 2020 · US
Geared low fan pressure ratio fan exit guide vane stagger angle
US-10738627-B2 · Aug 11, 2020 · US
Reduced fan containment threat through liner and blade design
US-10731511-B2 · Aug 4, 2020 · US
Fir tree root for a bladed disc
US-2020224542-A1 · Jul 16, 2020 · US
Core-protecting fan modules and turbofan engines containing the same
US-10670040-B2 · Jun 2, 2020 · US
Unducted-fan aircraft engine including a propeller comprising vanes with roots outside the nacelle and covered by detachable covers
US-10669010-B2 · Jun 2, 2020 · US
Process for repairing turbine engine components
US-2020102827-A1 · Apr 2, 2020 · US
Impeller for centrifugal turbomachine and centrifugal turbomachine
US-2020056487-A1 · Feb 20, 2020 · US
Heat exchanger with precision manufactured flow passages
US-10378359-B2 · Aug 13, 2019 · US
Turbomachine diffuser including flow mixing lobes and method
US-10344604-B2 · Jul 9, 2019 · US
Self-tightening rotor
US-2019176978-A1 · Jun 13, 2019 · US
Shroud arrangement of a row of blades of stator vanes or rotor blades
US-10316677-B2 · Jun 11, 2019 · US
Non-linear bumper bearings
US-10309256-B2 · Jun 4, 2019 · US
Inlet door state control system
US-10273823-B2 · Apr 30, 2019 · US
Self-tightening rotor
US-10196138-B2 · Feb 5, 2019 · US
Self-tightening rotor
US-10160538-B2 · Dec 25, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01D5/021?
- CPC F01D5/021 is the Cooperative Patent Classification code for “for flow machines or engines with only one axial stage (for more than one stage F01D5/06).”
- How many patents are filed under CPC F01D5/021 (for flow machines or engines with only one axial stage (for more than one stage F01D5/06))?
- Our database includes 118 publications tagged with this CPC code.
- Is patent activity under CPC F01D5/021 growing?
- Publication counts under this code: 11 in 2024 vs 12 in 2025 (latest complete years).