H02K 1/2781
Magnets shaped to vary the mechanical air gap between the magnets and
Official title: Magnets shaped to vary the mechanical air gap between the magnets and the stator
H02K1/2781 (Magnets shaped to vary the mechanical air gap between the magnets and) appears on 132 US grants and 156 published applications in this corpus.
Search patents in H02K- Granted patents
- 132
- Published applications
- 156
- Assignees
- 91
- Inventors
- 343
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 3 | 2 |
| 2003 | 1 | 3 |
| 2004 | 2 | 1 |
| 2005 | 2 | 4 |
| 2006 | 1 | 3 |
| 2007 | 1 | 4 |
| 2008 | 3 | 5 |
| 2009 | 4 | 12 |
| 2010 | 5 | 7 |
| 2011 | 8 | 6 |
| 2012 | 4 | 4 |
| 2013 | 4 | 1 |
| 2014 | 1 | 6 |
| 2015 | 3 | 6 |
| 2016 | 3 | 8 |
| 2017 | 2 | 5 |
| 2018 | 9 | 10 |
| 2019 | 8 | 14 |
| 2020 | 10 | 10 |
| 2021 | 8 | 6 |
| 2022 | 8 | 14 |
| 2023 | 10 | 11 |
| 2024 | 10 | 7 |
| 2025 | 8 | 3 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Axially stabilized magnetic bearing having a permanently magnetized radial bearing80US 5,126,610 AKernforschungsanlage Julich Gesellschaft mit beschrankter Haftung · 1992
- Dynamoelectric machine with permanent magnet and magnet mounting surface arrangement71US 4,642,502 AGeneral Motors Corporation · 1987
- Permanent magnet rotor and method and apparatus for making same58US 5,345,129 AGeneral Electric Company · 1994
- Reduced cogging torque permanent magnet electric machine with rotor having offset sections55US 6,707,209 B2Emerson Electric Co. · 2004
- Brushless D. C. motor and control assembly53US 6,271,638 B1General Electric Company · 2001