H02P 6/183
Using an injected high frequency signal
Official title: {using an injected high frequency signal}
H02P6/183 (Using an injected high frequency signal) appears on 215 US grants and 251 published applications in this corpus.
Search patents in H02P- Granted patents
- 215
- Published applications
- 251
- Assignees
- 144
- Inventors
- 455
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 3 | 2 |
| 2005 | 0 | 6 |
| 2006 | 4 | 2 |
| 2007 | 4 | 1 |
| 2008 | 1 | 2 |
| 2009 | 0 | 5 |
| 2010 | 2 | 9 |
| 2011 | 7 | 4 |
| 2012 | 5 | 6 |
| 2013 | 4 | 12 |
| 2014 | 7 | 14 |
| 2015 | 19 | 20 |
| 2016 | 7 | 17 |
| 2017 | 20 | 10 |
| 2018 | 9 | 17 |
| 2019 | 16 | 13 |
| 2020 | 18 | 25 |
| 2021 | 13 | 22 |
| 2022 | 25 | 16 |
| 2023 | 17 | 9 |
| 2024 | 11 | 17 |
| 2025 | 14 | 11 |
| 2026 | 2 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Saliency tracking for brushless Dc motors and other permanent magnet synchronous motors10 Mar 2026US 12,573,973 B2
- Method and device for injecting high frequency current vector24 Feb 2026US 12,562,663 B2Mitsubishi Electric Corporation
- Control device for rotating machine9 Dec 2025US 12,494,728 B2Mitsubishi Electric Corporation
- Avoiding electromagnetic interference (EMI) in electrical equipment and drive systems, e.g. used in radio astronomy21 Oct 2025US 12,451,835 B2Max-Planck-Gesellschaft Zur FöRderung Der Wissenschaften E. V.
- Standstill angle detection for salient motors19 Aug 2025US 12,395,103 B2Haier US Appliance Solutions, Inc.
- Method for determining the rotor position of an ec motor24 Sep 2026US 2026/0291411 A1Schaeffler Technologies AG & Co. KG
- Method for operating an electric motor27 Aug 2026US 2026/0254377 A1Schaeffler Technologies AG & Co. KG
- Method for recording an initial rotational position of a rotor16 Jul 2026US 2026/0205042 A1Schaeffler Technologies AG & Co. KG
- Method for operating an electric motor16 Jul 2026US 2026/0205045 A1Schaeffler Technologies AG & Co. KG
- Method for operating a direction-of-rotation sensorless electric motor18 Jun 2026US 2026/0168488 A1Schaeffler Technologies AG & Co. KG
Most cited
By later US patents
- Method and apparatus for transducerless position and velocity estimation in drives for AC machines138US 5,585,709 AWisconsin Alumni Research Foundation · 1996
- Method and apparatus for transducerless position and velocity estimation in drives for AC machines124US 5,565,752 AWisconsin Alumni Research Foundation · 1996
- Sensorless rotor tracking of induction machines with asymmetrical rotor resistance74US 6,069,467 AGeneral Electric Company · 2000
- Sensorless controller of AC motor and control method68US 7,045,988 B2Kabushiki Kaisha Yaskawa Denki · 2006
- Method and apparatus for transducerless flux estimation in drives for induction machines57US 5,559,419 AWisconsin Alumni Research Foundation · 1996