H02P 23/14
Estimation or adaptation of motor parameters
Official title: Estimation or adaptation of motor parameters, e.g. rotor time constant, flux, speed, current or voltage
H02P23/14 (Estimation or adaptation of motor parameters) appears on 970 US grants and 1,226 published applications in this corpus.
Search patents in H02P- Granted patents
- 970
- Published applications
- 1,226
- Assignees
- 502
- Inventors
- 2,528
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 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 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 10 |
| 2004 | 10 | 11 |
| 2005 | 7 | 12 |
| 2006 | 11 | 12 |
| 2007 | 10 | 14 |
| 2008 | 10 | 20 |
| 2009 | 11 | 24 |
| 2010 | 17 | 17 |
| 2011 | 24 | 23 |
| 2012 | 16 | 32 |
| 2013 | 23 | 26 |
| 2014 | 33 | 33 |
| 2015 | 36 | 43 |
| 2016 | 25 | 36 |
| 2017 | 43 | 44 |
| 2018 | 47 | 51 |
| 2019 | 50 | 68 |
| 2020 | 69 | 80 |
| 2021 | 58 | 101 |
| 2022 | 98 | 116 |
| 2023 | 98 | 125 |
| 2024 | 118 | 124 |
| 2025 | 87 | 100 |
| 2026 | 58 | 104 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Vehicle control system1 Oct 2026US 2026/0296213 A1Mazda Motor Corporation
- Real-time parameter based obstacle detection1 Oct 2026US 2026/0297988 A1GM Global Technology Operations LLC
- Motor controller and motor control system1 Oct 2026US 2026/0302987 A1Mitsubishi Electric Corporation
- Peak-to-peak ratio based obstacle detection1 Oct 2026US 2026/0302988 A1GM Global Technology Operations LLC
Most cited
By later US patents
- Handheld electromechanical surgical instruments with improved motor control arrangements for positioning components of an adapter coupled thereto527US 10,828,033 B2Ethicon, Inc. · 2020
- Adapters with control systems for controlling multiple motors of an electromechanical surgical instrument512US 10,869,666 B2Ethicon, Inc. · 2020
- Four quadrant motor controller minimizing distortion index88US 5,585,708 AKenetech Windpower, Inc. · 1996
- Speed control79US 4,145,161 AStandard Oil Company (Indiana) · 1979
- Control system and method for a rotating electromagnetic machine66US 6,756,757 B2Emerson Electric Co. · 2004