H02K 15/03
Having permanent magnets
Official title: having permanent magnets
H02K15/03 (Having permanent magnets) appears on 1,742 US grants and 2,079 published applications in this corpus.
Search patents in H02K- Granted patents
- 1,742
- Published applications
- 2,079
- Assignees
- 708
- Inventors
- 3,930
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 6 | 0 |
| 1978 | 6 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 5 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 10 | 0 |
| 1988 | 5 | 0 |
| 1989 | 8 | 0 |
| 1990 | 10 | 0 |
| 1991 | 13 | 0 |
| 1992 | 12 | 0 |
| 1993 | 15 | 0 |
| 1994 | 13 | 0 |
| 1995 | 14 | 0 |
| 1996 | 22 | 0 |
| 1997 | 13 | 0 |
| 1998 | 21 | 0 |
| 1999 | 30 | 0 |
| 2000 | 25 | 0 |
| 2001 | 22 | 6 |
| 2002 | 19 | 31 |
| 2003 | 16 | 41 |
| 2004 | 34 | 31 |
| 2005 | 23 | 28 |
| 2006 | 18 | 22 |
| 2007 | 17 | 45 |
| 2008 | 15 | 36 |
| 2009 | 21 | 31 |
| 2010 | 37 | 40 |
| 2011 | 38 | 49 |
| 2012 | 23 | 68 |
| 2013 | 31 | 82 |
| 2014 | 57 | 104 |
| 2015 | 50 | 84 |
| 2016 | 67 | 99 |
| 2017 | 81 | 94 |
| 2018 | 77 | 114 |
| 2019 | 93 | 165 |
| 2020 | 128 | 138 |
| 2021 | 110 | 100 |
| 2022 | 122 | 147 |
| 2023 | 96 | 132 |
| 2024 | 122 | 171 |
| 2025 | 93 | 128 |
| 2026 | 74 | 93 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Crystalline radical polymerizable composition for fixing a magnet of a rotating electric machine rotor core, a rotating electric machine rotor core using the composition, and a method of manufacturing the rotating electric machine rotor core6 Oct 2026US 12,756,246 B2Aisin Corporation
- Barrier coating for an electric motor rotor assembly6 Oct 2026US 12,756,281 B2BorgWarner Inc.
- Electric machine with core lamination structure having surface protrusions and recesses22 Sep 2026US 12,744,435 B2Ford Global Technologies, LLC
- Method for manufacturing rotor and rotor22 Sep 2026US 12,744,436 B2Toyota Boshoku Kabushiki Kaisha
- Motor rotor with inner sleeve15 Sep 2026US 12,738,785 B2
- Laminated core, rotor, and manufacturing method of laminated core8 Oct 2026US 2026/0312446 A1Nippon Steel Corporation
- Permanent magnet rotor8 Oct 2026US 2026/0312447 A1ABB Schweiz AG
- Thixotropic potting compound for fixing a permanent magnet in a rotor of a permanently excited synchronous machine8 Oct 2026US 2026/0312472 A1Innomotics GmbH
- Rotor of a permanently excited synchronous machine and permanently excited synchronous machine with such a rotor8 Oct 2026US 2026/0312473 A1Innomotics GmbH
- Systems and methods for rotor assemblies and manufacturing thereof1 Oct 2026US 2026/0296634 A1Archer Aviation Inc.
Most cited
By later US patents
- Linear stepper motor1,022US 6,756,705 B2Tri-Tech, Inc. · 2004
- Magnetically coded device145US 5,631,093 AGeneral Motors Corporation · 1997
- Ultra-high speed permanent magnet axial gap alternator with multiple stators127US 4,996,457 AThe United States of America as represented by the United States Department of Energy · 1991
- Method of manufacturing a rotor122US 5,500,994 AMabuchi Motor Co., Ltd. · 1996
- Axial field motor/generator110US 5,982,074 AAdvanced Technologies Int., Ltd. · 1999