H02P 25/098
Arrangements for reducing torque ripple
H02P25/098 (Arrangements for reducing torque ripple) appears on 106 US grants and 102 published applications in this corpus.
Search patents in H02P- Granted patents
- 106
- Published applications
- 102
- Assignees
- 79
- Inventors
- 217
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 8 |
| 2003 | 4 | 1 |
| 2004 | 1 | 2 |
| 2005 | 6 | 1 |
| 2006 | 0 | 3 |
| 2007 | 3 | 2 |
| 2008 | 0 | 2 |
| 2009 | 1 | 3 |
| 2010 | 2 | 1 |
| 2011 | 4 | 2 |
| 2012 | 1 | 1 |
| 2013 | 2 | 2 |
| 2014 | 0 | 4 |
| 2015 | 2 | 7 |
| 2016 | 3 | 5 |
| 2017 | 9 | 8 |
| 2018 | 5 | 6 |
| 2019 | 4 | 6 |
| 2020 | 8 | 11 |
| 2021 | 10 | 2 |
| 2022 | 4 | 8 |
| 2023 | 6 | 5 |
| 2024 | 4 | 6 |
| 2025 | 2 | 2 |
| 2026 | 1 | 4 |
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
- Torque estimator for switched reluctance machines145US 4,961,038 AGeneral Electric Company · 1990
- Method and apparatus for controlling torque and torque ripple in a variable reluctance motor72US 4,868,477 AThe Superior Electric Company · 1989
- Output smoothing in a switched reluctance machine52US 5,852,355 ASwitched Reluctance Drives Limited · 1998
- Method and apparatus for controlling a switched reluctance machine45US 6,051,942 AEmerson Electric Motor Co. · 2000
- Method and apparatus for controlling a switched reluctance machine33US 6,014,003 AEmerson Electric Co. · 2000