H02P 1/423
By using means to limit the current in the main winding
Official title: {by using means to limit the current in the main winding}
H02P1/423 (By using means to limit the current in the main winding) appears on 17 US grants and 16 published applications in this corpus.
Search patents in H02P- Granted patents
- 17
- Published applications
- 16
- Assignees
- 20
- Inventors
- 52
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 2 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 2 |
| 2015 | 0 | 2 |
| 2016 | 0 | 1 |
| 2017 | 4 | 3 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Single-phase AC motor with a relay function10 Feb 2026US 12,549,076 B2Motor Competence Center Holding Flensburg GmbH
- Method for starting a single-phase induction motor24 Jan 2023US 11,563,389 B2Danfoss Customised Power Electronics
- Control system and control method11 May 2021US 11,005,394 B2Carlo Gavazzi Services AG
- Soft starting system for an electrical motor17 Apr 2018US 9,948,215 B2Schneider Electric Industries SAS
- Apparatus and means for progressive motor start based on current derivative synchronisation5 Sep 2017US 9,755,554 B2Schneider Electric Industries SAS
- Single-phase induction motor drive system and motor drive method11 Jun 2026US 2026/0163510 A1Delta Electronics, Inc.
- Single-phase ac motor with a relay function3 Aug 2023US 2023/0246523 A1Motor Competence Center Holding Flensburg GmbH
- Electrified vehicle control to detect status of individual phases of three-phase motor19 May 2022US 2022/0158572 A1Ford Global Technologies, LLC
- Control System and Control Method11 Apr 2019US 2019/0109548 A1Carlo Gavazzi Services AG
- Driver circuit and method for single-phase and three-phase induction motors27 Apr 2017US 2017/0117826 A1Everette Energy, LLC
Most cited
By later US patents
- Motor start, reverse and protection system without a starting capacitor29US 5,483,139 AGeneral Electric Company · 1996
- Variable speed controller for air moving applications using an AC induction motor21US 6,864,659 B2Varidigm Corporation · 2005
- Device and method for controlling supply of current and static capacitance to compressor17US 6,407,530 B1LG Electronics Inc. · 2002
- Motor starter device having reduced power consumption14US 7,061,204 B2Texas Instruments Incorporated · 2006
- Solid state motor starter with energy recovery13US 5,923,143 AYork International Corporation · 1999