H02P 9/006
Means for protecting the generator by using control
Official title: {Means for protecting the generator by using control (control effected upon generator excitation circuit to reduce harmful effects of overloads or transients H02P9/10)}
H02P9/006 (Means for protecting the generator by using control) appears on 298 US grants and 331 published applications in this corpus.
Search patents in H02P- Granted patents
- 298
- Published applications
- 331
- Assignees
- 161
- Inventors
- 727
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 4 |
| 2004 | 3 | 9 |
| 2005 | 3 | 4 |
| 2006 | 11 | 9 |
| 2007 | 11 | 15 |
| 2008 | 7 | 10 |
| 2009 | 6 | 9 |
| 2010 | 4 | 6 |
| 2011 | 11 | 13 |
| 2012 | 6 | 15 |
| 2013 | 10 | 10 |
| 2014 | 12 | 13 |
| 2015 | 17 | 15 |
| 2016 | 9 | 22 |
| 2017 | 14 | 20 |
| 2018 | 25 | 28 |
| 2019 | 21 | 30 |
| 2020 | 32 | 24 |
| 2021 | 21 | 16 |
| 2022 | 20 | 13 |
| 2023 | 11 | 16 |
| 2024 | 17 | 17 |
| 2025 | 15 | 9 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Generator control architecture14 Jul 2026US 12,683,528 B2Hamilton Sundstrand Corporation
- Sustained undervoltage protection10 Feb 2026US 12,549,118 B2Hamilton Sundstrand Corporation
- Safety module for an inverter of a hybrid vehicle16 Dec 2025US 12,499,720 B2Schaeffler Technologies AG & Co. KG
- System and method for detecting bearing insulation and ground brush health in a generator2 Dec 2025US 12,487,269 B2GE Vernova Infrastructure Technology LLC
- Systems and methods for redundant overvoltage protection functions18 Nov 2025US 12,476,562 B2Hamilton Sundstrand Corporation
- Method of Operating a Wind Turbine and Control system27 Aug 2026US 2026/0251126 A1
- Turbo alternator overspeed protection circuit27 Aug 2026US 2026/0254378 A1Blue Origin Manufacturing, LLC
- Aircraft turbine engine comprising an electric motor comprising a device for correcting a precession movement and associated method25 Jun 2026US 2026/0180478 A1Safran Aircraft Engines
- Method for monitoring one or more electric drives of an electromechanical system29 Jan 2026US 2026/0028965 A1PROKON Regenerative Energien eG
- Power converter and system for an engine starter generator2 Oct 2025US 2025/0309782 A1General Electric Company
Most cited
By later US patents
- Hybrid alternator213US 5,747,909 AEcoair Corp. · 1998
- Electromechanical generator for, and method of, converting mechanical vibrational energy into electrical energy74US 7,345,372 B2Perpetuum Ltd. · 2008
- Hybrid alternator72US 5,753,989 AEcoair Corp. · 1998
- Apparatus and method for providing protection for a synchronous electrical generator in a power system71US 7,710,693 B2Schweitzer Engineering Laboratories, Inc. · 2010
- System and method of operating double fed induction generators41US 7,253,537 B2General Electric Company · 2007