H02P 23/06
Controlling the motor in four quadrants
H02P23/06 (Controlling the motor in four quadrants) appears on 151 US grants and 84 published applications in this corpus.
Search patents in H02P- Granted patents
- 151
- Published applications
- 84
- Assignees
- 97
- Inventors
- 290
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 7 | 0 |
| 1983 | 4 | 0 |
| 1984 | 10 | 0 |
| 1985 | 6 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 2 |
| 2002 | 2 | 3 |
| 2003 | 3 | 1 |
| 2004 | 1 | 3 |
| 2005 | 4 | 5 |
| 2006 | 3 | 3 |
| 2007 | 3 | 5 |
| 2008 | 3 | 4 |
| 2009 | 3 | 3 |
| 2010 | 1 | 1 |
| 2011 | 4 | 2 |
| 2012 | 3 | 7 |
| 2013 | 4 | 2 |
| 2014 | 5 | 6 |
| 2015 | 1 | 3 |
| 2016 | 3 | 5 |
| 2017 | 5 | 2 |
| 2018 | 5 | 3 |
| 2019 | 2 | 6 |
| 2020 | 4 | 1 |
| 2021 | 4 | 0 |
| 2022 | 0 | 3 |
| 2023 | 2 | 2 |
| 2024 | 4 | 6 |
| 2025 | 1 | 2 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- AC motor control device and tangible computer readable storage medium15 Sep 2026US 12,738,874 B2Denso Corporation
- Method and arrangement for operating pump system14 Jul 2026US 12,683,531 B2ABB Schweiz AG
- Motor control controller system and methods20 May 2025US 12,308,776 B2ETA Green Power Limited
- Method and circuit arrangement for controlling a stepper motor24 Dec 2024US 12,176,841 B2Analog Devices International Unlimited Company
- System and method of wiper electric drive control using four quadrant operation26 Nov 2024US 12,155,326 B2Rosemount Aerospace Inc.
- Method and Device for Operating an Electrical Machine in an Emergency Operating Mode30 Jul 2026US 2026/0221918 A1Bayerische Motoren Werke Aktiengesellschaft
- Power converting apparatus, motor drive device, and refrigeration cycle-incorporating device26 Mar 2026US 2026/0088743 A1Mitsubishi Electric Corporation
- Drive device26 Feb 2026US 2026/0058589 A1Toyota Jidosha Kabushiki Kaisha
- Energy storage based dc volts boost for transient high-speed/high-torque operation of variable frequency drive controlled motors29 Jan 2026US 2026/0031752 A1
- Motor drive device, and control method20 Nov 2025US 2025/0357872 A1Panasonic Intellectual Property Management Co., Ltd.
Most cited
By later US patents
- Power electronic interface circuits for batteries and ultracapacitors in electric vehicles and battery storage systems219US 5,710,699 AGeneral Electric Company · 1998
- AC/DC unity power-factor DC power supply for operating an electric motor90US 5,471,125 ADanfoss A/S · 1995
- Four quadrant motor controller minimizing distortion index88US 5,585,708 AKenetech Windpower, Inc. · 1996
- Frequency converter for an electromotor76US 6,072,291 ADanfoss A/S · 2000
- Electric propulsion and braking system for automotive vehicles73US 4,363,999 A1982