B60L 9/22
Polyphase motors
Official title: polyphase motors
B60L9/22 (Polyphase motors) appears on 110 US grants and 99 published applications in this corpus.
Search patents in B60L- Granted patents
- 110
- Published applications
- 99
- Assignees
- 44
- Inventors
- 215
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 2 |
| 2006 | 1 | 1 |
| 2007 | 2 | 4 |
| 2008 | 2 | 3 |
| 2009 | 2 | 2 |
| 2010 | 4 | 4 |
| 2011 | 2 | 3 |
| 2012 | 1 | 8 |
| 2013 | 5 | 6 |
| 2014 | 4 | 11 |
| 2015 | 8 | 17 |
| 2016 | 16 | 7 |
| 2017 | 9 | 6 |
| 2018 | 4 | 2 |
| 2019 | 6 | 5 |
| 2020 | 2 | 3 |
| 2021 | 1 | 0 |
| 2022 | 3 | 5 |
| 2023 | 2 | 1 |
| 2024 | 4 | 4 |
| 2025 | 3 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Power storage system9 Jun 2026US 12,649,374 B2Honda Motor Co., Ltd.
- Apparatus and method for rapid charging using shared power electronics12 Aug 2025US 12,384,260 B2Edison Innovations, LLC
- Propulsion controller and method of controlling filter capacitor voltage10 Jun 2025US 12,328,084 B2Mitsubishi Electric Corporation
- Propulsion control device and propulsion control method25 Feb 2025US 12,233,751 B2Mitsubishi Electric Corporation
- Electric vehicle control device14 May 2024US 11,984,833 B2Mitsubishi Electric Corporation
- Electric vehicle control device and electric vehicle control system20 Aug 2026US 2026/0241800 A1Mitsubishi Electric Corporation
- Electric vehicle drive system4 Dec 2025US 2025/0368053 A1Mitsubishi Electric Corporation
- Propulsion controller and method of controlling filter capacitor voltage15 Aug 2024US 2024/0275323 A1Mitsubishi Electric Corporation
- Power storage system30 May 2024US 2024/0174090 A1Honda Motor Co., Ltd.
- Apparatus and method for rapid charging using shared power electronics16 May 2024US 2024/0157821 A1General Electric Company
Most cited
By later US patents
- Power converter for converting DC voltage into AC phase voltage having three levels of positive, zero and negative voltage80US 5,361,196 AHitachi, Ltd. · 1994
- Three level power converting apparatus having means for balancing DC component thereof40US 5,627,742 AHitachi, Ltd. · 1997
- Multiple engine locomotive configuration40US 7,565,867 B22009
- Electric vehicle control system for controlling a permanent magnet motor which drives the electric vehicle38US 6,278,256 B1Kabushiki Kaisha Toshiba · 2001
- Hybrid drive system38US 9,493,077 B2Mitsubishi Electric Corporation · 2016