F05D 2220/768
Equipped with permanent magnets
Official title: equipped with permanent magnets
F05D2220/768 (Equipped with permanent magnets) appears on 104 US grants and 140 published applications in this corpus.
Search patents in F05D- Granted patents
- 104
- Published applications
- 140
- Assignees
- 63
- Inventors
- 255
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2003 | 1 | 2 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 2 |
| 2008 | 2 | 8 |
| 2009 | 2 | 1 |
| 2010 | 2 | 4 |
| 2011 | 3 | 6 |
| 2012 | 4 | 4 |
| 2013 | 8 | 6 |
| 2014 | 3 | 2 |
| 2015 | 1 | 3 |
| 2016 | 1 | 6 |
| 2017 | 4 | 2 |
| 2018 | 2 | 9 |
| 2019 | 4 | 11 |
| 2020 | 14 | 18 |
| 2021 | 12 | 9 |
| 2022 | 15 | 12 |
| 2023 | 8 | 13 |
| 2024 | 10 | 6 |
| 2025 | 5 | 4 |
| 2026 | 1 | 9 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Multi shaft power transfer system17 Feb 2026US 12,553,389 B2Hamilton Sundstrand Corporation
- Electromagnetic inducer for gas turbine rotating turbomachinery21 Oct 2025US 12,448,893 B1Pratt & Whitney Canada Corp.
- Electrical energy system having active segments for variable voltage generation22 Jul 2025US 12,368,359 B2ROLLS-ROYCE plc
- Differential gearbox assembly for a turbine engine8 Jul 2025US 12,352,214 B2GE Avio S. r. l.
- Super-cooled propellant powered generator system22 Apr 2025US 12,283,867 B1
- Magnetic levitation-based hybrid propulsion system10 Sep 2026US 2026/0266195 A1MagLev Aero Inc.
- Electric vehicle charging system3 Sep 2026US 2026/0257571 A1
- Bidirectional flowthrough turboexpander6 Aug 2026US 2026/0226844 A1Calnetix Technologies, LLC
- Turbomachine comprising a permanent-magnet electric machine for powering a rotating load2 Jul 2026US 2026/0184431 A1Safran Aircraft Engines
- Turbomachine comprising an electric machine provided with a fixed winding, an excitation winding and a rotary winding which are arranged radially2 Jul 2026US 2026/0185457 A1Safran Aircraft Engines
Most cited
By later US patents
- Variable magnetic coupling of rotating machinery52US 7,791,235 B2General Electric Company · 2010
- Micro gas turbine engine with active tip clearance control43US 6,692,222 B2Honda Giken Kogyo Kabushiki Kaisha · 2004
- Fan embedded power generator41US 8,522,522 B2Hamilton Sundstrand Corporation · 2013
- Turbojet having an electricity generator arranged in its fan39US 7,952,244 B2Snecma · 2011
- Embedded electric machine34US 10,308,366 B2General Electric Company · 2019