H02K 3/522
For generally annular cores with salient poles
Official title: {for generally annular cores with salient poles}
H02K3/522 (For generally annular cores with salient poles) appears on 2,104 US grants and 2,614 published applications in this corpus.
Search patents in H02K- Granted patents
- 2,104
- Published applications
- 2,614
- Assignees
- 609
- Inventors
- 4,446
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 6 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 6 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 7 | 0 |
| 1991 | 10 | 0 |
| 1992 | 4 | 0 |
| 1993 | 13 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 11 | 0 |
| 1997 | 7 | 0 |
| 1998 | 7 | 0 |
| 1999 | 13 | 0 |
| 2000 | 20 | 0 |
| 2001 | 12 | 8 |
| 2002 | 16 | 35 |
| 2003 | 22 | 35 |
| 2004 | 33 | 50 |
| 2005 | 34 | 54 |
| 2006 | 43 | 53 |
| 2007 | 39 | 50 |
| 2008 | 28 | 58 |
| 2009 | 43 | 71 |
| 2010 | 55 | 82 |
| 2011 | 55 | 62 |
| 2012 | 42 | 68 |
| 2013 | 66 | 113 |
| 2014 | 73 | 102 |
| 2015 | 60 | 127 |
| 2016 | 76 | 109 |
| 2017 | 101 | 117 |
| 2018 | 97 | 117 |
| 2019 | 121 | 144 |
| 2020 | 124 | 188 |
| 2021 | 128 | 170 |
| 2022 | 137 | 214 |
| 2023 | 117 | 172 |
| 2024 | 182 | 183 |
| 2025 | 155 | 152 |
| 2026 | 94 | 80 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Blower with bearing tube333US 8,636,479 B2ResMed Motor Technologies Inc. · 2014
- Motor mounted in a vehicle94US 6,011,339 AShibaura Engineering Works Co., Ltd. · 2000
- Rotary motor and production method thereof, and laminated core and production method thereof91US 5,859,486 AMitsubishi Denki Kabushiki Kaisha · 1999
- Power tools with switched reluctance motor90US 7,064,462 B2Milwaukee Electric Tool Corporation · 2006
- Field assembly for electric motors87US 3,979,615 AAMP Incorporated · 1976