H02P 1/38
By pole-changing
Official title: by pole-changing
H02P1/38 (By pole-changing) appears on 10 US grants and 6 published applications in this corpus.
Search patents in H02P- Granted patents
- 10
- Published applications
- 6
- Assignees
- 6
- Inventors
- 20
- Latest grant
- 23 Jan 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Control apparatus for electric motor-driven hoisting-lowering device23 Jan 2024US 11,881,800 B2Kito Corporation
- Method for controlling a multiphase electric motor operating in star-connected mode5 Aug 2014US 8,796,970 B2Grundfos Management A/S
- Alternating current machine with increased torque above and below rated speed for hybrid/electric propulsion systems7 May 2013US 8,436,569 B2
- Alternating current machine with increased torque above and below rated speed for hybrid electric propulsion systems22 May 2012US 8,183,814 B2
- Drive arrangement, especially for a lifting mechanism and/or a traveling drive27 Jun 2006US 7,068,009 B2Demag Cranes & Components GmbH
- Control apparatus for electric motor-driven hoisting-lowering device22 Dec 2022US 2022/0407445 A1Kito Corporation
- Mining Vehicle13 Mar 2014US 2014/0070754 A1Sandvik Mining and Construction Oy
- Alternating current machine with increased torque above and below rated speed for hybrid/electric propulsion systems25 Oct 2012US 2012/0268053 A1
- Method for controlling a multiphase electric motor operating in star-connected mode20 Jan 2011US 2011/0012545 A1Grundfos Management A/S
- Alternating current machine with increased torque above and below rated speed for hybrid electric propulsion systems28 Jan 2010US 2010/0019714 A1
Most cited
By later US patents
- Induced voltage reduction method and an induced voltage reduction apparatus for an induction motor16US 5,760,567 AFanuc Corporation · 1998
- Alternating current machine with increased torque above and below rated speed for hybrid electric propulsion systems16US 8,183,814 B22012
- AC Motor drive14US 4,242,626 AJet Spray Cooler, Inc. · 1980
- Alternating current machine with increased torque above and below rated speed for hybrid/electric propulsion systems5US 8,436,569 B22013
- Dual load control apparatus4US 4,254,343 A1981