H02P 25/086
Commutation
H02P25/086 (Commutation) appears on 221 US grants and 144 published applications in this corpus.
Search patents in H02P- Granted patents
- 221
- Published applications
- 144
- Assignees
- 110
- Inventors
- 332
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 9 | 0 |
| 1993 | 8 | 0 |
| 1994 | 11 | 0 |
| 1995 | 8 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 7 | 0 |
| 2000 | 5 | 0 |
| 2001 | 10 | 4 |
| 2002 | 6 | 4 |
| 2003 | 6 | 4 |
| 2004 | 4 | 7 |
| 2005 | 6 | 6 |
| 2006 | 3 | 3 |
| 2007 | 6 | 3 |
| 2008 | 2 | 2 |
| 2009 | 1 | 2 |
| 2010 | 1 | 8 |
| 2011 | 2 | 3 |
| 2012 | 7 | 1 |
| 2013 | 3 | 2 |
| 2014 | 4 | 4 |
| 2015 | 2 | 6 |
| 2016 | 7 | 10 |
| 2017 | 8 | 14 |
| 2018 | 13 | 9 |
| 2019 | 9 | 11 |
| 2020 | 13 | 14 |
| 2021 | 12 | 4 |
| 2022 | 9 | 10 |
| 2023 | 4 | 4 |
| 2024 | 7 | 5 |
| 2025 | 4 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Controller for a switched reluctance machine28 Apr 2026US 12,614,999 B2Hamilton Sundstrand Corporation
- Axial flux switched reluctance and inductance state machine systems, devices, and methods17 Mar 2026US 12,580,465 B2Anthropocene Institute LLC
- Motor position detection device21 Oct 2025US 12,451,828 B2LG Innotek Co., Ltd.
- System and method for permanent magnet assisted synchronous reluctance motor control from zero or low speed2 Sep 2025US 12,407,230 B2Wolong Electric Group Co., Ltd.
- Acoustic noise reduction for switched reluctance machines8 Jul 2025US 12,355,384 B2Enedym Inc.
- Axial flux switched reluctance and inductance state machine systems, devices, and methods2 Jul 2026US 2026/0189114 A1Anthropocene Institute LLC
- Acoustic noise reduction for switched reluctance machines20 Mar 2025US 2025/0096716 A1Enedym Inc.
- System and method for permanent magnet assisted synchronous reluctance motor control from zero or low speed20 Feb 2025US 2025/0062668 A1Wolong Electric Group Co., Ltd.
- Axial flux switched reluctance and inductance state machine systems, devices, and methods2 Jan 2025US 2025/0007375 A1Anthropocene Institute LLC
- Switchover asymmetric h-bridge circuit for series and parallel mode operation of srm motor5 Dec 2024US 2024/0405708 A1Chara Technologies Pvt Ltd
Most cited
By later US patents
- Rotor position estimator for switched reluctance motor85US 4,772,839 AGeneral Electric Company · 1988
- Switched reluctance motor control circuit with energy recovery capability72US 5,075,610 AHoneywell Inc. · 1991
- Sensorless commutation controller for a poly-phase dynamoelectric machine69US 5,457,375 AEmerson Electric Co. · 1995
- Method and apparatus for implementing sensorless control of a switched reluctance machine63US 5,929,590 AEmerson Electric Co. · 1999
- Switched reluctance motor position by resonant signal injection58US 5,196,775 AHoneywell Inc. · 1993