H02P 9/08
Control of generator circuit during starting or stopping of driving means
Official title: Control of generator circuit during starting or stopping of driving means, e.g. for initiating excitation
H02P9/08 (Control of generator circuit during starting or stopping of driving means) appears on 327 US grants and 292 published applications in this corpus.
Search patents in H02P- Granted patents
- 327
- Published applications
- 292
- Assignees
- 171
- Inventors
- 710
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 10 | 0 |
| 1997 | 6 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 10 | 0 |
| 2001 | 6 | 3 |
| 2002 | 9 | 12 |
| 2003 | 10 | 6 |
| 2004 | 9 | 9 |
| 2005 | 5 | 3 |
| 2006 | 2 | 3 |
| 2007 | 2 | 5 |
| 2008 | 5 | 6 |
| 2009 | 5 | 9 |
| 2010 | 4 | 5 |
| 2011 | 5 | 5 |
| 2012 | 7 | 16 |
| 2013 | 7 | 6 |
| 2014 | 10 | 18 |
| 2015 | 11 | 20 |
| 2016 | 18 | 10 |
| 2017 | 13 | 19 |
| 2018 | 16 | 23 |
| 2019 | 25 | 25 |
| 2020 | 25 | 17 |
| 2021 | 11 | 13 |
| 2022 | 10 | 15 |
| 2023 | 15 | 12 |
| 2024 | 13 | 18 |
| 2025 | 14 | 6 |
| 2026 | 6 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Integrated cranking inverter and boost converter for a series hybrid drive system214US 5,589,743 AGeneral Electric Company · 1996
- Starter/generator system with variable-frequency exciter control139US 5,594,322 ASundstrand Corporation · 1997
- Wind power generator133US 7,456,510 B2Zephyr Corporation · 2008
- Starter/generator system having multivoltage generation capability130US 5,512,811 ASundstrand Corporation · 1996
- Control for a brushless generator111US 5,493,200 ASundstrand Corporation · 1996