Rotor drum for a turbomachine
US-2020362702-A1 · Nov 19, 2020 · US
with concentric rows of axial blades
with concentric rows of axial blades · 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 | F01D5/022 |
| Official title | {with concentric rows of axial blades} |
| Display label | with concentric rows of axial blades |
| Total patents | 99 |
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 | 7 |
| 2016 | 5 |
| 2017 | 13 |
| 2018 | 9 |
| 2019 | 12 |
| 2020 | 14 |
| 2021 | 8 |
| 2022 | 7 |
| 2023 | 14 |
| 2024 | 8 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Rotor, axial compressor, installation method
US-10830253-B2 · Nov 10, 2020 · US
Multi-source turbine cooling air
US-10823071-B2 · Nov 3, 2020 · US
Adaptive vertical lift engine (avle) fan
US-2020340400-A1 · Oct 29, 2020 · US
Rotor blade assembly comprising a ring segment shaped or disc segment shaped blade carrier and a radially inner reinforcement structure
US-10794199-B2 · Oct 6, 2020 · US
Rotor blade assembly comprising a ring-shaped or disc-shaped blade carrier and a radially inner reinforcement structure
US-10794188-B2 · Oct 6, 2020 · US
Mistuned concentric airfoil assembly and method of mistuning same
US-10767486-B2 · Sep 8, 2020 · US
Turbomachine with Alternatingly Spaced Rotor Blades
US-2020263547-A1 · Aug 20, 2020 · US
Compressor rotor stack assembly for gas turbine engine
US-2020208531-A1 · Jul 2, 2020 · US
Partially shrouded gas turbine engine fan
US-10619483-B2 · Apr 14, 2020 · US
Turbomachine
US-2020102828-A1 · Apr 2, 2020 · US
Compressor rotor stack assembly for gas turbine engine
US-10584599-B2 · Mar 10, 2020 · US
Efficient gas turbine engine
US-2020049104-A1 · Feb 13, 2020 · US
Turbine rotor assembly, turbine, and rotor blade
US-10557355-B2 · Feb 11, 2020 · US
Rotor disk boss
US-10458243-B2 · Oct 29, 2019 · US
Pneumatic controller for controlling a bleed valve
US-2019309647-A1 · Oct 10, 2019 · US
Connection of rotatable parts
US-10400679-B2 · Sep 3, 2019 · US
Multi-source turbine cooling air
US-10371056-B2 · Aug 6, 2019 · US
Partially shrouded gas turbine engine fan
US-2019153866-A1 · May 23, 2019 · US
Coupling system comprising self locking joint
US-10280800-B2 · May 7, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01D5/022?
- CPC F01D5/022 is the Cooperative Patent Classification code for “with concentric rows of axial blades.”
- How many patents are filed under CPC F01D5/022 (with concentric rows of axial blades)?
- Our database includes 99 publications tagged with this CPC code.
- Is patent activity under CPC F01D5/022 growing?
- Publication counts under this code: 8 in 2024 vs 2 in 2025 (latest complete years).