Non rotating spacer for gas turbine engine
US-2025347368-A1 · Nov 13, 2025 · US
Glands for admission or removal of fluids from shafts
Glands for admission or removal of fluids from shafts · 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 | F05D2240/63 |
| Official title | Glands for admission or removal of fluids from shafts |
| Display label | Glands for admission or removal of fluids from shafts |
| Total patents | 50 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 3 |
| 2017 | 8 |
| 2018 | 4 |
| 2019 | 4 |
| 2020 | 9 |
| 2021 | 7 |
| 2022 | 4 |
| 2023 | 7 |
| 2024 | 1 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Steam turbine plant and method for improving same
US-12372003-B2 · Jul 29, 2025 · US
Steam turbine plant and method for improving same
US-2025179927-A1 · Jun 5, 2025 · US
Gland condenser skid systems by direct contact heat exchanger technology
US-2024084720-A1 · Mar 14, 2024 · US
Aeronautic propulsion system with low leakage rate and improved propulsion efficiency
US-11802515-B2 · Oct 31, 2023 · US
Axial flow turbine with upstream gland and extraction of cooling air
US-11761348-B2 · Sep 19, 2023 · US
Nuclear power plant and turbine apparatus
US-2023230716-A1 · Jul 20, 2023 · US
Systems and methods for internal spline lubrication
US-11591963-B1 · Feb 28, 2023 · US
Systems and methods for internal spline lubrication
US-2023059943-A1 · Feb 23, 2023 · US
Turbine rotor and axial flow turbine
US-11572797-B2 · Feb 7, 2023 · US
Aeronautic propulsion system with low leakage rate and improved propulsion efficiency
US-2023019277-A1 · Jan 19, 2023 · US
Gas turbine engine
US-11536161-B2 · Dec 27, 2022 · US
System and method for modulating airflow into a bore of a rotor to control blade tip clearance
US-11512594-B2 · Nov 29, 2022 · US
Rotor drum for a turbomachine
US-11286815-B2 · Mar 29, 2022 · US
Center vent tube support device of turbofan engine
US-11248496-B2 · Feb 15, 2022 · US
Turbine rotor and axial flow turbine
US-2021396145-A1 · Dec 23, 2021 · US
System and method for modulating airfow into a bore of a rotor to control blade tip clearance
US-2021381433-A1 · Dec 9, 2021 · US
Thermal management of a shaft
US-11149645-B2 · Oct 19, 2021 · US
Axial flow turbine
US-2021262362-A1 · Aug 26, 2021 · US
Oil transfer for a control system regulating the propeller pitch of a turbine engine
US-11021235-B2 · Jun 1, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F05D2240/63?
- CPC F05D2240/63 is the Cooperative Patent Classification code for “Glands for admission or removal of fluids from shafts.”
- How many patents are filed under CPC F05D2240/63 (Glands for admission or removal of fluids from shafts)?
- Our database includes 50 publications tagged with this CPC code.
- Is patent activity under CPC F05D2240/63 growing?
- Publication counts under this code: 1 in 2024 vs 3 in 2025 (latest complete years).