H02K 21/46
Motors having additional short-circuited winding for starting as an asynchronous motor
H02K21/46 (Motors having additional short-circuited winding for starting as an asynchronous motor) appears on 153 US grants and 142 published applications in this corpus.
Search patents in H02K- Granted patents
- 153
- Published applications
- 142
- Assignees
- 88
- Inventors
- 325
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 6 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 2 |
| 2002 | 2 | 8 |
| 2003 | 3 | 5 |
| 2004 | 8 | 5 |
| 2005 | 5 | 5 |
| 2006 | 7 | 10 |
| 2007 | 3 | 12 |
| 2008 | 3 | 5 |
| 2009 | 8 | 4 |
| 2010 | 3 | 8 |
| 2011 | 7 | 5 |
| 2012 | 1 | 4 |
| 2013 | 4 | 6 |
| 2014 | 1 | 6 |
| 2015 | 2 | 7 |
| 2016 | 2 | 5 |
| 2017 | 4 | 3 |
| 2018 | 5 | 10 |
| 2019 | 9 | 6 |
| 2020 | 6 | 5 |
| 2021 | 4 | 2 |
| 2022 | 4 | 1 |
| 2023 | 2 | 5 |
| 2024 | 3 | 8 |
| 2025 | 3 | 1 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vehicle drive system29 Sep 2026US 12,749,955 B2Mazda Motor Corporation
- Vehicle drive system8 Sep 2026US 12,732,077 B2Mazda Motor Corporation
- Vehicle driving motor having secondary conductors for magnetic flux guidance25 Aug 2026US 12,719,342 B2Mazda Motor Corporation
- Synchronous reluctance motor23 Jun 2026US 12,665,479 B2Nidec Corporation
- Vehicle drive system14 Apr 2026US 12,603,560 B2Mazda Motor Corporation
- Permanent magnet assisted synchronous reluctance motor17 Sep 2026US 2026/0280395 A1Gree Electric Appliances, Inc. of Zhuhai
- Rotor structure and motor17 Sep 2026US 2026/0280396 A1Gree Electric Appliances, Inc. of Zhuhai
- Superconducting motors and components thereof20 Aug 2026US 2026/0246355 A1Electric Mayhem, LLC
- Line start permanent magnet assisted synchronous reluctance motor14 May 2026US 2026/0135454 A1ABB Schweiz AG
- Hybrid motor9 Jan 2025US 2025/0015694 A1Hyundai Motor Company
Most cited
By later US patents
- Heart pump179US 5,344,443 AREM Technologies, Inc. · 1994
- Rotor lamination for an AC permanent magnet synchronous motor109US 5,097,166 AReuland Electric Company · 1992
- Direct axis aiding permanent magnets for a laminated synchronous motor rotor104US 4,139,790 AReliance Electric Company · 1979
- Synchronous machine with inner rotor, excited by permanent magnets73US 4,127,786 ASiemens Aktiengesellschaft · 1978
- Versatile AC dynamo-electric machine73US 5,838,085 APrecise Power Corporation · 1998