H02P 1/32
By star/delta switching
Official title: by star/delta switching
H02P1/32 (By star/delta switching) appears on 58 US grants and 48 published applications in this corpus.
Search patents in H02P- Granted patents
- 58
- Published applications
- 48
- Assignees
- 41
- Inventors
- 109
- Latest grant
- 1 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 2 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 2 |
| 2014 | 1 | 2 |
| 2015 | 0 | 1 |
| 2016 | 1 | 12 |
| 2017 | 8 | 3 |
| 2018 | 3 | 4 |
| 2019 | 6 | 4 |
| 2020 | 3 | 9 |
| 2021 | 7 | 0 |
| 2022 | 2 | 0 |
| 2023 | 1 | 2 |
| 2024 | 0 | 1 |
| 2025 | 2 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Winding reconfiguration assembly and method for operation of said assembly1 Jul 2025US 12,348,098 B2Dana Tm4 Inc.
- Electromagnetic contactor for star-delta driving15 Apr 2025US 12,278,069 B2
- Driving device, air conditioner, and method for controlling compressor25 Apr 2023US 11,637,521 B2Mitsubishi Electric Corporation
- Method and apparatus for controlling three-phase electric motor11 Jan 2022US 11,223,316 B2Power Drive Efficiency Ltd
- Power supply device of reduced complexity accepting power through wye and delta configurations4 Jan 2022US 11,218,092 B2Hongfujin Precision Electronics (Tianjin) Co., Ltd.
- Systems for power module assembly for inverter11 Sep 2025US 2025/0286492 A1BorgWarner US Technologies LLC
- Systems for power module assembly for inverter11 Sep 2025US 2025/0286493 A1BorgWarner US Technologies LLC
- Winding reconfiguration assembly and method for operation of said assembly25 Jan 2024US 2024/0030767 A1Dana Tm4 Inc.
- Electromagnetic contactor for star-delta driving10 Aug 2023US 2023/0253171 A1
- Method for starting motor5 Jan 2023US 2023/0006588 A1Nidec Corporation
Most cited
By later US patents
- Brushless direct current motor having adjustable motor characteristics68US 5,614,799 AMTS Systems Corporation · 1997
- Self adapting motor controller63US 6,169,383 ASiemens Energy & Automation, Inc. · 2001
- Induction motor winding45US 4,675,591 AA. O. Smith Corporation · 1987
- Method and system of controlling asynchronous contactors for a multi-phase electric load35US 7,224,557 B2Eaton Corporation · 2007
- Control system for AC induction motor34US 4,425,539 ABorg-Warner Corporation · 1984