H02P 25/092
Converters specially adapted for controlling reluctance motors
H02P25/092 (Converters specially adapted for controlling reluctance motors) appears on 326 US grants and 242 published applications in this corpus.
Search patents in H02P- Granted patents
- 326
- Published applications
- 242
- Assignees
- 164
- Inventors
- 489
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 8 | 0 |
| 1997 | 9 | 0 |
| 1998 | 21 | 0 |
| 1999 | 23 | 0 |
| 2000 | 15 | 0 |
| 2001 | 3 | 4 |
| 2002 | 16 | 11 |
| 2003 | 10 | 3 |
| 2004 | 7 | 10 |
| 2005 | 10 | 9 |
| 2006 | 7 | 9 |
| 2007 | 7 | 10 |
| 2008 | 7 | 8 |
| 2009 | 3 | 9 |
| 2010 | 8 | 5 |
| 2011 | 6 | 8 |
| 2012 | 8 | 3 |
| 2013 | 2 | 12 |
| 2014 | 5 | 15 |
| 2015 | 7 | 16 |
| 2016 | 13 | 22 |
| 2017 | 16 | 22 |
| 2018 | 17 | 17 |
| 2019 | 16 | 15 |
| 2020 | 12 | 10 |
| 2021 | 14 | 6 |
| 2022 | 7 | 5 |
| 2023 | 7 | 4 |
| 2024 | 6 | 5 |
| 2025 | 4 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Driving system31 Mar 2026US 12,592,660 B2Mitsubishi Electric Corporation
- Dual application gate driver9 Dec 2025US 12,494,778 B1Caterpillar Inc.
- Variable frequency drive synchronous reluctance motor system with volts-per-Hertz control21 Oct 2025US 12,451,829 B2Nidec Motor Corporation
- Motor control method and device25 Feb 2025US 12,237,786 B1Monumo Limited
- Minimizing dc-link current ripple and acoustic noise, and reducing DC-link capacitor requirement, for electric motors18 Feb 2025US 12,231,070 B2The University of Akron
- System and method for fault diagnosis for cascaded h-bridge (chb) converter based switched reluctance motor (srm) drive systems20 Aug 2026US 2026/0243828 A1Enedym Inc.
- Topological circuit and control strategy for driving switched reluctance motor (srm)7 May 2026US 2026/0128704 A1Taiyuan University of Technology
- Motor drive device and motor drive system11 Dec 2025US 2025/0379535 A1Isuzu Motors Limited
- Dual application gate driver11 Dec 2025US 2025/0379575 A1Caterpillar Inc.
- 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
- Control system for switched reluctance motor75US 4,707,650 AGeneral Electric Company · 1987
- Commutator for switched reluctance drive61US 4,739,240 AGeneral Electric Company · 1988
- Switched reluctance motor drive operating without a shaft position sensor60US 4,611,157 AGeneral Electric Company · 1986
- Regenerative unipolar converter for switched reluctance motors using one main switching device per phase56US 4,684,867 AGeneral Electric Company · 1987
- Doubly salient permanent magnet machine with field weakening (or boosting) capability53US 5,825,113 AElectric Power Research Institute, Inc. · 1998