H02K 37/14
With magnets rotating within the armatures
Official title: with magnets rotating within the armatures
H02K37/14 (With magnets rotating within the armatures) appears on 553 US grants and 355 published applications in this corpus.
Search patents in H02K- Granted patents
- 553
- Published applications
- 355
- Assignees
- 241
- Inventors
- 915
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 8 | 0 |
| 1978 | 11 | 0 |
| 1979 | 5 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 13 | 0 |
| 1983 | 17 | 0 |
| 1984 | 8 | 0 |
| 1985 | 8 | 0 |
| 1986 | 5 | 0 |
| 1987 | 16 | 0 |
| 1988 | 13 | 0 |
| 1989 | 13 | 0 |
| 1990 | 10 | 0 |
| 1991 | 13 | 0 |
| 1992 | 8 | 0 |
| 1993 | 8 | 0 |
| 1994 | 10 | 0 |
| 1995 | 9 | 0 |
| 1996 | 6 | 0 |
| 1997 | 11 | 0 |
| 1998 | 17 | 0 |
| 1999 | 10 | 0 |
| 2000 | 16 | 0 |
| 2001 | 14 | 2 |
| 2002 | 10 | 19 |
| 2003 | 14 | 15 |
| 2004 | 23 | 15 |
| 2005 | 17 | 23 |
| 2006 | 13 | 25 |
| 2007 | 18 | 22 |
| 2008 | 16 | 28 |
| 2009 | 12 | 10 |
| 2010 | 17 | 10 |
| 2011 | 11 | 16 |
| 2012 | 10 | 11 |
| 2013 | 10 | 14 |
| 2014 | 7 | 11 |
| 2015 | 12 | 13 |
| 2016 | 9 | 10 |
| 2017 | 14 | 18 |
| 2018 | 4 | 13 |
| 2019 | 14 | 10 |
| 2020 | 15 | 13 |
| 2021 | 10 | 11 |
| 2022 | 9 | 8 |
| 2023 | 7 | 5 |
| 2024 | 6 | 8 |
| 2025 | 4 | 6 |
| 2026 | 5 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electric motor1 Sep 2026US 12,726,054 B2AAC Microtech (Changzhou) Co., Ltd.
- Electric motors and methods of controlling thereof21 Apr 2026US 12,609,590 B2121352 Canada Inc.
- Stator with teeth skewed from the rotation axis24 Mar 2026US 12,587,046 B2Mineba Mitsumi Inc.
- Electric actuator24 Feb 2026US 12,562,630 B2Sonceboz Mechatronics Boncourt
- Eight-stator-pole, bipolar, 3.6-° hybrid step motor27 Jan 2026US 12,537,398 B2Lin Engineering, Inc.
- Stepping motor13 Aug 2026US 2026/0238107 A1AAC Microtech (Changzhou) Co., Ltd.
- Stepping motor and electric motor module16 Jul 2026US 2026/0204968 A1AAC Microtech (Changzhou) Co., Ltd.
- Power supply method for a stepper motor and drive device for operating the latter16 Jul 2026US 2026/0205038 A1Carel Industries S.P.A.
- Manufacturing method of a multi-pole magnetic circuit, multi-pole magnetic circuit, and stepper motor4 Jun 2026US 2026/0155718 A1AAC Microtech (Changzhou) Co., Ltd.
- Stepper motor21 May 2026US 2026/0142544 A1AAC Microtech (Changzhou) Co., Ltd.
Most cited
By later US patents
- Series redundant drive system1,219US 3,950,686 ATRW Inc. · 1976
- Dynamoelectric machine having a large magnetic gap and flexible printed circuit phase winding97US 4,645,961 AThe Charles Stark Draper Laboratory, Inc. · 1987
- Bipolar stepping motor rotor with drive pinion and method of manufacture95US 4,700,091 ATimex Corporation · 1987
- Step motors89US 4,315,171 A1982
- Pole grouping for stepping motor77US 4,910,475 ALinex Technology Corporation · 1990