H02K 1/24
Rotor cores with salient poles
Official title: Rotor cores with salient poles {; Variable reluctance rotors}
H02K1/24 (Rotor cores with salient poles) appears on 1,204 US grants and 1,314 published applications in this corpus.
Search patents in H02K- Granted patents
- 1,204
- Published applications
- 1,314
- Assignees
- 463
- Inventors
- 2,502
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 6 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 5 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 8 | 0 |
| 1993 | 9 | 0 |
| 1994 | 9 | 0 |
| 1995 | 6 | 0 |
| 1996 | 8 | 0 |
| 1997 | 7 | 0 |
| 1998 | 24 | 0 |
| 1999 | 24 | 0 |
| 2000 | 27 | 0 |
| 2001 | 21 | 4 |
| 2002 | 18 | 19 |
| 2003 | 17 | 17 |
| 2004 | 27 | 24 |
| 2005 | 21 | 26 |
| 2006 | 14 | 20 |
| 2007 | 23 | 39 |
| 2008 | 17 | 29 |
| 2009 | 16 | 32 |
| 2010 | 35 | 31 |
| 2011 | 30 | 23 |
| 2012 | 21 | 32 |
| 2013 | 10 | 33 |
| 2014 | 22 | 55 |
| 2015 | 20 | 68 |
| 2016 | 28 | 81 |
| 2017 | 59 | 100 |
| 2018 | 74 | 105 |
| 2019 | 95 | 113 |
| 2020 | 122 | 79 |
| 2021 | 80 | 71 |
| 2022 | 67 | 72 |
| 2023 | 55 | 63 |
| 2024 | 57 | 72 |
| 2025 | 51 | 54 |
| 2026 | 38 | 52 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Motor rotor, self-starting synchronous reluctance motor comprising same, and compressor6 Oct 2026US 12,756,283 B2Gree Electric Appliances, Inc. of Zhuhai
- Axial flux electric motor with rotor cooling29 Sep 2026US 12,749,935 B2GM Global Technology Operations LLC
- Rotor assembly for an electric excited synchronous motor (EESM)22 Sep 2026US 12,744,428 B2GKN Automotive AG
- ESM with reduced torque ripple15 Sep 2026US 12,738,781 B2Audi AG
- Electric machine, component for an electric machine and motor vehicle comprising an electric machine1 Sep 2026US 12,726,066 B2Audi AG
- Rotor for a synchronous machine8 Oct 2026US 2026/0312444 A1
- Wound-field rotating electrical machine1 Oct 2026US 2026/0302860 A1Aisin Corporation
- Synchronous electric machine with fixed clawed inductor17 Sep 2026US 2026/0280362 A1
- Rotor, rotary electric machine and manufacturing method of rotor17 Sep 2026US 2026/0280369 A1Kabushiki Kaisha Toshiba
- Multi-Part Cover Element for Covering a Winding Head of a Rotor17 Sep 2026US 2026/0280377 A1Bayerische Motoren Werke Aktiengesellschaft
Most cited
By later US patents
- Hybrid alternator213US 5,747,909 AEcoair Corp. · 1998
- Alternator for an automotive vehicle130US 5,998,903 ADenso Corporation · 1999
- Permanent magnet reluctance motor with embedded permanent magnet holes115US 6,794,784 B2Kabushiki Kaisha Toshiba · 2004
- Rotating electrical machine with electromagnetic and permanent magnet excitation101US 5,663,605 AFord Motor Company · 1997
- Rotor for a rotating electric machine96US 5,483,116 ANippondenso Co., Ltd. · 1996