H02K 17/18
Having double-cage or multiple-cage rotors
Official title: having double-cage or multiple-cage rotors
H02K17/18 (Having double-cage or multiple-cage rotors) appears on 63 US grants and 66 published applications in this corpus.
Search patents in H02K- Granted patents
- 63
- Published applications
- 66
- Assignees
- 42
- Inventors
- 150
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 2 | 2 |
| 2006 | 2 | 3 |
| 2007 | 3 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 3 |
| 2011 | 0 | 4 |
| 2012 | 1 | 3 |
| 2013 | 3 | 3 |
| 2014 | 2 | 3 |
| 2015 | 2 | 3 |
| 2016 | 1 | 0 |
| 2017 | 1 | 3 |
| 2018 | 3 | 4 |
| 2019 | 2 | 2 |
| 2020 | 3 | 4 |
| 2021 | 1 | 3 |
| 2022 | 4 | 6 |
| 2023 | 5 | 4 |
| 2024 | 4 | 7 |
| 2025 | 2 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Canned rotodynamic flow machine for a molten salt nuclear reactor and an active magnetic bearing for use in a flow machine for a molten salt nuclear reactor12 May 2026US 12,624,698 B2Copenhagen Atomics A/S
- Induction motor25 Nov 2025US 12,483,086 B2Entuple E-Mobility Pvt. Ltd.
- Rotating electrical machine, set of such machines, and associated boat and rolling mill16 Sep 2025US 12,418,228 B2GE Energy Power Conversion Technology Limited
- Superconducting rotating machine2 Jul 2024US 12,027,953 B2Kyoto University
- Canned rotodynamic flow machine for a molten salt nuclear reactor and an active magnetic bearing for use in a flow machine for a molten salt nuclear reactor21 May 2024US 11,990,815 B2Copenhagen Atomics A/S
- Canned Rotodynamic Flow Machine For A Molten Salt Nuclear Reactor And An Active Magnetic Bearing For Use In A Flow Machine For A Molten Salt Nuclear Reactor20 Aug 2026US 2026/0243262 A1Copenhagen Atomics A/S
- Rotor of an axial flux induction machine6 Aug 2026US 2026/0229972 A1Aura Systems, Inc.
- Induction motor with a circumferentially slitted squirrel cage rotor20 Mar 2025US 2025/0096660 A1Hyundai Motor Company
- Electric motor rotor12 Dec 2024US 2024/0413722 A1Safran Helicopter Engines
- Motor21 Nov 2024US 2024/0388183 A1Mazda Motor Corporation
Most cited
By later US patents
- Line start permanent magnet motor56US 5,952,757 AGeneral Electric Company · 1999
- Squirrel-cage rotor with shaped-conductor harmonic reduction31US 5,182,483 AKabushiki Kaisha Toshiba · 1993
- Method of making an induction motor rotor28US 6,058,596 AGeneral Electric Company · 2000
- Stator and rotor lamination construction for a dynamo-electric machine27US 4,801,832 AGeneral Electric Company · 1989
- Sensorless control induction motor rotor slot shapes and fabrication methods23US 6,515,395 B1General Electric Company · 2003