H02K 37/02
Motors with rotor rotating step by step and without interrupter or commutator
Official title: of variable reluctance type
H02K37/02 (Motors with rotor rotating step by step and without interrupter or commutator) appears on 162 US grants and 118 published applications in this corpus.
Search patents in H02K- Granted patents
- 162
- Published applications
- 118
- Assignees
- 117
- Inventors
- 306
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 7 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 3 |
| 2003 | 1 | 2 |
| 2004 | 6 | 4 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 2 |
| 2008 | 1 | 2 |
| 2009 | 2 | 4 |
| 2010 | 5 | 6 |
| 2011 | 8 | 13 |
| 2012 | 2 | 5 |
| 2013 | 4 | 2 |
| 2014 | 3 | 6 |
| 2015 | 2 | 2 |
| 2016 | 2 | 2 |
| 2017 | 1 | 6 |
| 2018 | 6 | 9 |
| 2019 | 5 | 6 |
| 2020 | 4 | 20 |
| 2021 | 8 | 6 |
| 2022 | 11 | 8 |
| 2023 | 7 | 4 |
| 2024 | 5 | 3 |
| 2025 | 4 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Magnetic-based actuation mechanisms for and methods of actuating magnetically responsive microposts in a reaction chamber17 Feb 2026US 12,551,883 B2Redbud Labs, Inc.
- Eight-stator-pole, bipolar, 3.6-° hybrid step motor27 Jan 2026US 12,537,398 B2Lin Engineering, Inc.
- Optical element exchange unit4 Nov 2025US 12,463,519 B2Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
- 4-stator-pole step motor with passive inter-poles7 Oct 2025US 12,438,429 B2Lin Engineering, Inc.
- Electric machine8 Apr 2025US 12,272,999 B2Yamaha Hatsudoki Kabushiki Kaisha
- Magnetic-based actuation mechanisms for and methods of actuating magnetically responsive microposts in a reaction chamber10 Sep 2026US 2026/0264074 A1Redbud Labs, Inc.
- Multi plate reluctance motor22 Aug 2024US 2024/0283324 A1Eltorque AS
- Eight-stator-pole, bipolar, 3.6-degree hybrid step motor8 Aug 2024US 2024/0266888 A1Lin Engineering, Inc.
- Electric machine15 Feb 2024US 2024/0055963 A1Yamaha Hatsudoki Kabushiki Kaisha
- An optical element exchange unit5 Oct 2023US 2023/0318427 A1Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
Most cited
By later US patents
- High torque robot motor74US 4,501,980 AMotornetics Corporation · 1985
- Electric power supply system for portable miniature size power consuming devices57US 4,644,246 AKinetron B. V. · 1987
- Variable reluctance motor57US 4,990,809 AThe Superior Electric Company · 1991
- Transverse and/or commutated flux system stator concepts50US 7,851,965 B2Motor Excellence, LLC · 2010
- Transverse and/or commutated flux system rotor concepts49US 7,923,886 B2Motor Excellence, LLC · 2011