H02K 15/023
Cage rotors
H02K15/023 (Cage rotors) appears on 236 US grants and 258 published applications in this corpus.
Search patents in H02K- Granted patents
- 236
- Published applications
- 258
- Assignees
- 124
- Inventors
- 556
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 0 |
| 2002 | 4 | 1 |
| 2003 | 1 | 7 |
| 2004 | 3 | 5 |
| 2005 | 2 | 2 |
| 2006 | 5 | 4 |
| 2007 | 0 | 6 |
| 2008 | 3 | 4 |
| 2009 | 1 | 1 |
| 2010 | 1 | 3 |
| 2011 | 2 | 10 |
| 2012 | 7 | 21 |
| 2013 | 12 | 22 |
| 2014 | 12 | 12 |
| 2015 | 15 | 13 |
| 2016 | 7 | 16 |
| 2017 | 7 | 9 |
| 2018 | 12 | 21 |
| 2019 | 16 | 17 |
| 2020 | 22 | 23 |
| 2021 | 22 | 15 |
| 2022 | 14 | 12 |
| 2023 | 7 | 9 |
| 2024 | 2 | 8 |
| 2025 | 6 | 9 |
| 2026 | 6 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for producing a rotor of an asynchronous machine2 Jun 2026US 12,647,006 B2Innomotics GmbH
- Rotor of an electric asynchronous machine and method for its production12 May 2026US 12,627,187 B2Wieland-Werke AG
- Rotor for rotary electric machine, manufacturing method and corresponding rotary electric machines5 May 2026US 12,620,852 B2Weg Equipamentos EléTricos S.A.
- Rotor having a squirrel cage7 Apr 2026US 12,597,835 B2Innomotics GmbH
- Induction rotor assembly with thin foils7 Apr 2026US 12,597,836 B2GM Global Technology Operations LLC
- Method for manufacturing an armature and/or rotor, as well as armature and/or rotor and electric machine20 Aug 2026US 2026/0246323 A1Additive Drives GmbH
- Squirrel cage induction machine rotor with enlarged connection region30 Jul 2026US 2026/0221856 A1Atieva, Inc.
- Electric machine with a rotor assembly for rotor core retention9 Jul 2026US 2026/0196895 A1Ford Global Technologies, LLC
- Induction motor including rotor having end segment protrusions28 May 2026US 2026/0149347 A1Schaeffler Technologies AG & Co. KG
- Stator construction for wind turbine generators2 Apr 2026US 2026/0095081 A1
Most cited
By later US patents
- Method of manufacturing squirrel cage rotors48US 6,088,906 AUT-Battelle, LLC · 2000
- Electric vehicle motor47US 5,682,074 ANorthrop Grumman Corporation · 1997
- Stator winding for an electric machine39US 4,347,454 ASiemens Aktiengesellschaft · 1982
- Method and device of producing a squirrel-cage rotor for an induction motor31US 5,538,067 AFanuc Corporation · 1996
- Additive manufacturing of a component having a laminated stack of layers31US 9,419,502 B2Hamilton Sundstrand Corporation · 2016