H02P 21/06
Rotor flux based control involving the use of rotor position or rotor
Official title: Rotor flux based control involving the use of rotor position or rotor speed sensors
H02P21/06 (Rotor flux based control involving the use of rotor position or rotor) appears on 764 US grants and 677 published applications in this corpus.
Search patents in H02P- Granted patents
- 764
- Published applications
- 677
- Assignees
- 291
- Inventors
- 1,500
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 6 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 9 | 0 |
| 1983 | 4 | 0 |
| 1984 | 14 | 0 |
| 1985 | 8 | 0 |
| 1986 | 3 | 0 |
| 1987 | 8 | 0 |
| 1988 | 5 | 0 |
| 1989 | 5 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 7 | 0 |
| 1993 | 4 | 0 |
| 1994 | 8 | 0 |
| 1995 | 7 | 0 |
| 1996 | 8 | 0 |
| 1997 | 8 | 0 |
| 1998 | 14 | 0 |
| 1999 | 12 | 0 |
| 2000 | 6 | 0 |
| 2001 | 6 | 2 |
| 2002 | 6 | 9 |
| 2003 | 7 | 8 |
| 2004 | 11 | 13 |
| 2005 | 11 | 21 |
| 2006 | 23 | 16 |
| 2007 | 14 | 18 |
| 2008 | 13 | 30 |
| 2009 | 15 | 23 |
| 2010 | 16 | 31 |
| 2011 | 25 | 35 |
| 2012 | 25 | 17 |
| 2013 | 27 | 27 |
| 2014 | 26 | 33 |
| 2015 | 29 | 38 |
| 2016 | 33 | 24 |
| 2017 | 29 | 28 |
| 2018 | 27 | 31 |
| 2019 | 42 | 53 |
| 2020 | 40 | 52 |
| 2021 | 44 | 34 |
| 2022 | 37 | 35 |
| 2023 | 38 | 30 |
| 2024 | 22 | 28 |
| 2025 | 29 | 23 |
| 2026 | 15 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Motor control device and motor15 Sep 2026US 12,738,870 B2Nidec Corporation
- Position detection and monitoring14 Jul 2026US 12,683,530 B2Infineon Technologies Austria AG
- Field-oriented sensorless brushless motor control in a power tool30 Jun 2026US 12,671,355 B2Black & Decker Inc.
- Method of aligning a stationary rotor of a synchronous motor at a configured rotor angle and a controller therefor26 May 2026US 12,640,631 B1Kinetic Technologies International Holdings LP
- Feedforward current control of induction machines26 May 2026US 12,640,670 B2Steering Solutions IP Holding Corporation
- Systems and methods for a permanent magnet synchronous motor8 Oct 2026US 2026/0312516 A1Schlumberger Technology Corporation
- Electric machine system10 Sep 2026US 2026/0269757 A1IHI Corporation
- Power tool with high and low field weakening states27 Aug 2026US 2026/0249439 A1
- Rotating electrical machine control device27 Aug 2026US 2026/0254384 A1Mitsubishi Electric Corporation
- Method of Controlling an Electric Motor and Control System for an Electric Motor30 Jul 2026US 2026/0221909 A1Infineon Technologies Austria AG
Most cited
By later US patents
- Variable speed wind turbine with reduced power fluctuation and a static VAR mode of operation266US 5,225,712 AU.S. Windpower, Inc. · 1993
- Variable speed wind turbine245US 5,083,039 AU.S. Windpower, Inc. · 1992
- Method of induction motor control and electric drive realizing this method111US 4,926,105 A1990
- Four quadrant motor controller minimizing distortion index88US 5,585,708 AKenetech Windpower, Inc. · 1996
- Self commissioning controller for field-oriented elevator motor/drive system84US 5,929,400 AOtis Elevator Company · 1999