H02P 2207/05
Synchronous machines
Official title: Synchronous machines, e.g. with permanent magnets or DC excitation
H02P2207/05 (Synchronous machines) appears on 641 US grants and 835 published applications in this corpus.
Search patents in H02P- Granted patents
- 641
- Published applications
- 835
- Assignees
- 368
- Inventors
- 1,700
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 1 |
| 2003 | 2 | 0 |
| 2004 | 1 | 10 |
| 2005 | 7 | 11 |
| 2006 | 16 | 13 |
| 2007 | 7 | 7 |
| 2008 | 7 | 12 |
| 2009 | 6 | 7 |
| 2010 | 8 | 21 |
| 2011 | 11 | 18 |
| 2012 | 25 | 12 |
| 2013 | 12 | 11 |
| 2014 | 13 | 28 |
| 2015 | 20 | 26 |
| 2016 | 15 | 40 |
| 2017 | 26 | 17 |
| 2018 | 19 | 34 |
| 2019 | 38 | 43 |
| 2020 | 39 | 46 |
| 2021 | 34 | 48 |
| 2022 | 54 | 71 |
| 2023 | 69 | 74 |
| 2024 | 56 | 120 |
| 2025 | 92 | 90 |
| 2026 | 49 | 75 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Motor control device and magnetic pole position calculation method6 Oct 2026US 12,756,337 B2Hitachi Astemo, Ltd.
- Boosted rotor supply circuit and method for improving pulsed electric machine efficiency22 Sep 2026US 12,744,478 B2Tula eTechnology, Inc.
- Determining a permanent magnet flux state22 Sep 2026US 12,744,481 B2Schneider Toshiba Inverter Europe SAS
- Controller for a permanent magnet machine22 Sep 2026US 12,744,484 B2Hamilton Sundstrand Corporation
- Systems and methods for active discharge for inverter for electric vehicle22 Sep 2026US 12,745,369 B2BorgWarner US Technologies LLC
- Control method, calibration method and electric motor8 Oct 2026US 2026/0312513 A1Robert Bosch GmbH
- Systems and methods for a permanent magnet synchronous motor8 Oct 2026US 2026/0312516 A1Schlumberger Technology Corporation
- Data-Driven Predictive Current Modeling Method, Apparatus, Medium, and Device for a Permanent Magnet Synchronous Motor8 Oct 2026US 2026/0312517 A1Southwest Jiaotong University
- Contactless wound-field rotor8 Oct 2026US 2026/0312524 A1Aisin Corporation
- Winding switching device and winding switching system1 Oct 2026US 2026/0298988 A1Autonetworks Technologies, Ltd.
Most cited
By later US patents
- Control device for electric motor412US 7,005,828 B2Nissan Motor Co., Ltd. · 2006
- Method of estimating a rotor position of synchronous motor, method of controlling synchronous motor with no position sensor and a controller of synchronous motor142US 6,396,229 B1Hitachi, Ltd. · 2002
- Variable speed motor apparatus and method for forming same from a split capacitor motor60US 5,796,234 AGas Research Institute · 1998
- Sensorless control method and apparatus of permanent magnet synchronous motor37US 6,081,093 AKabushiki Kaisha Yaskawa Denki · 2000
- Position sensorless control algorithm for AC machine36US 6,924,617 B2General Motors Corporation · 2005