H02P 23/0077
Arrangements or methods for the control of ac motors characterised by a
Official title: {Characterised by the use of a particular software algorithm}
H02P23/0077 (Arrangements or methods for the control of ac motors characterised by a) appears on 319 US grants and 205 published applications in this corpus.
Search patents in H02P- Granted patents
- 319
- Published applications
- 205
- Assignees
- 190
- Inventors
- 702
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 10 | 0 |
| 1984 | 26 | 0 |
| 1985 | 6 | 0 |
| 1986 | 14 | 0 |
| 1987 | 8 | 0 |
| 1988 | 8 | 0 |
| 1989 | 8 | 0 |
| 1990 | 7 | 0 |
| 1991 | 12 | 0 |
| 1992 | 3 | 0 |
| 1993 | 7 | 0 |
| 1994 | 4 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 8 | 0 |
| 1999 | 7 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 4 | 3 |
| 2003 | 5 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 9 |
| 2006 | 4 | 4 |
| 2007 | 0 | 6 |
| 2008 | 2 | 8 |
| 2009 | 4 | 5 |
| 2010 | 7 | 10 |
| 2011 | 3 | 7 |
| 2012 | 4 | 11 |
| 2013 | 9 | 8 |
| 2014 | 11 | 7 |
| 2015 | 7 | 16 |
| 2016 | 11 | 6 |
| 2017 | 11 | 16 |
| 2018 | 13 | 14 |
| 2019 | 11 | 12 |
| 2020 | 10 | 16 |
| 2021 | 12 | 5 |
| 2022 | 9 | 8 |
| 2023 | 1 | 4 |
| 2024 | 7 | 9 |
| 2025 | 4 | 7 |
| 2026 | 9 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Motor control system, motor control method, and non-transitory storage medium8 Sep 2026US 12,732,124 B2Toyota Jidosha Kabushiki Kaisha
- Method for adjusting values of a plurality of parameters of at least one controller of an electric drive system, and electric drive system19 May 2026US 12,633,856 B2Lenze Automation GmbH
- Method, controller and motor drive system for suppressing electromechanical coupling resonance19 May 2026US 12,633,857 B1Southwest Jiaotong University
- Method for determining rotation parameters of a rotation angle, and electric motor17 Sep 2026US 2026/0280455 A1Schaeffler Technologies AG & Co. KG
- Automatic configuration of electric drives and motors6 Aug 2026US 2026/0230021 A1ABB Schweiz AG
- Boat propulsion device and boat16 Jul 2026US 2026/0200571 A1Yamaha Hatsudoki Kabushiki Kaisha
- Motor Controller Control Method, Apparatus, Device, and Storage Medium9 Jul 2026US 2026/0196956 A1Ehang Intelligent Equipment (Guangzhou) Co., Ltd.
- Method, Controller and Motor Drive System for Suppressing Electromechanical Coupling Resonance21 May 2026US 2026/0142599 A1Southwest Jiaotong University
Most cited
By later US patents
- Integrated electric motor monitor148US 6,529,135 B1CSI Technology, Inc. · 2003
- Method and apparatus for operating vacuum cleaner114US 4,880,474 AHitachi, Ltd. · 1989
- High speed deep well pump for residential use114US 5,883,489 AGeneral Electric Company · 1999
- Motor control apparatus with parallel input, serial output signal conditioning means109US 4,434,390 AWestinghouse Electric Corp. · 1984
- Ground fault detection and protection method for a variable speed ac electric motor101US 5,945,802 AGeneral Electric Company · 1999