H02P 6/32
Arrangements for controlling wound field motors
Official title: Arrangements for controlling wound field motors, e.g. motors with exciter coils
H02P6/32 (Arrangements for controlling wound field motors) appears on 86 US grants and 86 published applications in this corpus.
Search patents in H02P- Granted patents
- 86
- Published applications
- 86
- Assignees
- 64
- Inventors
- 206
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 2 |
| 2006 | 3 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 4 |
| 2015 | 2 | 2 |
| 2016 | 3 | 7 |
| 2017 | 2 | 4 |
| 2018 | 5 | 10 |
| 2019 | 8 | 7 |
| 2020 | 11 | 3 |
| 2021 | 2 | 4 |
| 2022 | 5 | 3 |
| 2023 | 4 | 11 |
| 2024 | 8 | 12 |
| 2025 | 8 | 9 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Power distribution within an electric machine with rectified rotor windings12 Mar 2026US 2026/0074632 A1Tau Motors, Inc.
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Most cited
By later US patents
- Starter/generator system having multivoltage generation capability130US 5,512,811 ASundstrand Corporation · 1996
- Electronically commutated motor, method of operating such, control circuit, laundry machine and drive therefor69US 4,528,485 AGeneral Electric Company · 1985
- Method and apparatus for operating polyphase dc motors53US 5,306,988 ASGS-Thomson Microelectronics S.A. · 1994
- Self-starting transducerless, brushless D.C. motor controller44US 4,455,513 AImec · 1984
- Optimum efficiency rotary machine having synchronous operation at a selectable speed43US 4,238,717 ANu-Tech Industries, Inc. · 1980