Closed-loop cooling fluid circuit for magnetic bearings of an expander-compressor system
US-12584420-B2 · Mar 24, 2026 · US
with permanent magnets
with permanent magnets · 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 | F05D2240/511 |
| Official title | with permanent magnets |
| Display label | with permanent magnets |
| Total patents | 25 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 1 |
| 2020 | 3 |
| 2021 | 4 |
| 2022 | 4 |
| 2023 | 5 |
| 2024 | 3 |
| 2025 | 2 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Motor and apparatus using the same
US-12560173-B2 · Feb 24, 2026 · US
Turbomachine provided with a magnetic drive pump
US-12442385-B2 · Oct 14, 2025 · US
Closed-loop cooling fluid circuit for magnetic bearings of an expander-compressor system
US-2025003425-A1 · Jan 2, 2025 · US
Electromagnetic rotary drive and centrifugal pump
US-2024328423-A1 · Oct 3, 2024 · US
Vacuum pump and magnetic-bearing-integrated motor
US-12009726-B2 · Jun 11, 2024 · US
Turbomachine provided with a magnetic drive pump
US-2024141911-A1 · May 2, 2024 · US
Vacuum pump and leak detector
US-11754081-B2 · Sep 12, 2023 · US
Axial magnetic bearing for centrifugal refrigerant compressor
US-11682944-B2 · Jun 20, 2023 · US
Blood-immersed bearing system for a blood pump
US-11672968-B2 · Jun 13, 2023 · US
Motor and apparatus using the same
US-2023095855-A1 · Mar 30, 2023 · US
Electric motor and turbo-compressor
US-11575293-B2 · Feb 7, 2023 · US
Vacuum pump and leak detector
US-2022389933-A1 · Dec 8, 2022 · US
Axial magnetic bearing for centrifugal refrigerant compressor
US-2022385138-A1 · Dec 1, 2022 · US
Hybrid magnetic thrust bearing in an electric submersible pump (ESP) assembly
US-11512707-B2 · Nov 29, 2022 · US
Vacuum Pump and Magnetic-Bearing-Integrated Motor
US-2022216767-A1 · Jul 7, 2022 · US
Hybrid magnetic thrust bearing in an electric submersible pump (esp) assembly
US-2021372419-A1 · Dec 2, 2021 · US
Contact-less magnetic supports for marine hydrokinetic energy harvesting using flow induced oscillations
US-11143158-B2 · Oct 12, 2021 · US
Turbo compressor
US-2021115929-A1 · Apr 22, 2021 · US
Magnetorheological support method for blisk processing
US-10946459-B2 · Mar 16, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F05D2240/511?
- CPC F05D2240/511 is the Cooperative Patent Classification code for “with permanent magnets.”
- How many patents are filed under CPC F05D2240/511 (with permanent magnets)?
- Our database includes 25 publications tagged with this CPC code.
- Is patent activity under CPC F05D2240/511 growing?
- Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).