Blade retention features for turbomachines
US-11156109-B2 · Oct 26, 2021 · US
Annular blade-carrying members having blades on the inner periphery of the annulus and extending inwardly radially, i.e. inverted rotors
Annular blade-carrying members having blades on the inner periphery of the annulus and extending inwardly radially, i.e. inverted rotors · 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 | F01D5/03 |
| Official title | Annular blade-carrying members having blades on the inner periphery of the annulus and extending inwardly radially, i.e. inverted rotors |
| Display label | Annular blade-carrying members having blades on the inner periphery of the annulus and extending inwardly radially, i.e. inverted rotors |
| Total patents | 92 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2018 | 6 |
| 2019 | 23 |
| 2020 | 17 |
| 2021 | 19 |
| 2022 | 12 |
| 2023 | 6 |
| 2024 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Guiding ring for variable-pitch blades and method of mounting said ring
US-11149571-B2 · Oct 19, 2021 · US
Method of control of three spool gas turbine engine
US-11105269-B2 · Aug 31, 2021 · US
Counter rotating power turbine with reduction gearbox
US-11105200-B2 · Aug 31, 2021 · US
Turbomachine with alternatingly spaced turbine rotor blades
US-11098592-B2 · Aug 24, 2021 · US
Outer drum rotor assembly
US-11085309-B2 · Aug 10, 2021 · US
Damper assemblies for rotating drum rotors of gas turbine engines
US-2021156257-A1 · May 27, 2021 · US
Turbomachine with a gearbox and integrated electric machine assembly
US-11008883-B2 · May 18, 2021 · US
Blade retention features for turbomachines
US-2021108522-A1 · Apr 15, 2021 · US
Integral sealing members for blades retained within a rotatable annular outer drum rotor in a turbomachine
US-2021047933-A1 · Feb 18, 2021 · US
Turbomachine with alternatingly spaced turbine rotor blades
US-10914194-B2 · Feb 9, 2021 · US
Inner band for turbine engine
US-2021032999-A1 · Feb 4, 2021 · US
Thermal structure for outer diameter mounted turbine blades
US-10876407-B2 · Dec 29, 2020 · US
Counter rotating turbine with reversing speed reduction assembly
US-10815881-B2 · Oct 27, 2020 · US
Counter rotating turbine with reversing reduction gear assembly
US-10801442-B2 · Oct 13, 2020 · US
Intersage seal assembly for counter rotating turbine
US-10774668-B2 · Sep 15, 2020 · US
Rotor for a contrarotating turbine of a turbine engine
US-2020284150-A1 · Sep 10, 2020 · US
Turbomachine with Alternatingly Spaced Rotor Blades
US-2020263547-A1 · Aug 20, 2020 · US
Structure for mitigating vibratory modes of counter-rotating engine rotors
US-10746047-B2 · Aug 18, 2020 · US
Turbomachine with alternatingly spaced turbine rotor blades
US-10738617-B2 · Aug 11, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01D5/03?
- CPC F01D5/03 is the Cooperative Patent Classification code for “Annular blade-carrying members having blades on the inner periphery of the annulus and extending inwardly radially, i.e. inverted rotors.”
- How many patents are filed under CPC F01D5/03 (Annular blade-carrying members having blades on the inner periphery of the annulus and extending inwardly radially, i.e. inverted rotors)?
- Our database includes 92 publications tagged with this CPC code.
- Is patent activity under CPC F01D5/03 growing?
- Publication counts under this code: 6 in 2023 vs 7 in 2024 (latest complete years).