Closed-loop cooling fluid circuit for magnetic bearings of an expander-compressor system
US-12584420-B2 · Mar 24, 2026 · US
Electromagnetic
Electromagnetic · 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 | F05D2240/515 |
| Official title | Electromagnetic |
| Display label | Electromagnetic |
| Total patents | 42 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2018 | 3 |
| 2019 | 5 |
| 2020 | 3 |
| 2021 | 4 |
| 2022 | 5 |
| 2023 | 11 |
| 2024 | 4 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Magnetic-foil bearing supporting turbine engine rotating structure
US-12473857-B2 · Nov 18, 2025 · US
Centrifugal pump and a pump housing
US-12188475-B2 · Jan 7, 2025 · US
Closed-loop cooling fluid circuit for magnetic bearings of an expander-compressor system
US-2025003425-A1 · Jan 2, 2025 · US
Magnetic-foil bearing supporting turbine engine rotating structure
US-2024352889-A1 · Oct 24, 2024 · US
Clearance control of fan blades in a gas turbine engine
US-12110800-B2 · Oct 8, 2024 · US
Vacuum pump and magnetic-bearing-integrated motor
US-12009726-B2 · Jun 11, 2024 · US
Aircraft fuel system with clutched augmentor pump
US-11971040-B2 · Apr 30, 2024 · US
Thrust bearing for a rotating machine
US-11835088-B2 · Dec 5, 2023 · US
Clearance control of fan blades in a gas turbine engine
US-2023340887-A1 · Oct 26, 2023 · US
System for vibration management in rotating machinery
US-11698027-B2 · Jul 11, 2023 · US
Turbomachine systems with magnetic bearing cooling and method
US-11686214-B2 · Jun 27, 2023 · US
Axial magnetic bearing for centrifugal refrigerant compressor
US-11682944-B2 · Jun 20, 2023 · US
Vacuum pump and magnetic bearing controller with multiple rigidity modes at high and low gains
US-11680572-B2 · Jun 20, 2023 · US
Blood-immersed bearing system for a blood pump
US-11672968-B2 · Jun 13, 2023 · US
Resonance vibration control method and system
US-11674547-B2 · Jun 13, 2023 · US
Clearance control of fan blades in a gas turbine engine
US-11655724-B1 · May 23, 2023 · US
Aircraft fuel system with clutched augmentor pump
US-2023132118-A1 · Apr 27, 2023 · US
Centrifugal fan noise-lowering structure
US-11542960-B1 · Jan 3, 2023 · US
Axial magnetic bearing for centrifugal refrigerant compressor
US-2022385138-A1 · Dec 1, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F05D2240/515?
- CPC F05D2240/515 is the Cooperative Patent Classification code for “Electromagnetic.”
- How many patents are filed under CPC F05D2240/515 (Electromagnetic)?
- Our database includes 42 publications tagged with this CPC code.
- Is patent activity under CPC F05D2240/515 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).