H02K 19/26
Characterised by the arrangement of exciting windings
Official title: characterised by the arrangement of exciting windings
H02K19/26 (Characterised by the arrangement of exciting windings) appears on 209 US grants and 187 published applications in this corpus.
Search patents in H02K- Granted patents
- 209
- Published applications
- 187
- Assignees
- 120
- Inventors
- 433
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 5 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 0 |
| 2002 | 2 | 0 |
| 2003 | 1 | 8 |
| 2004 | 4 | 7 |
| 2005 | 6 | 4 |
| 2006 | 4 | 5 |
| 2007 | 2 | 4 |
| 2008 | 1 | 4 |
| 2009 | 0 | 1 |
| 2010 | 5 | 4 |
| 2011 | 3 | 8 |
| 2012 | 4 | 6 |
| 2013 | 2 | 9 |
| 2014 | 5 | 14 |
| 2015 | 6 | 10 |
| 2016 | 6 | 8 |
| 2017 | 12 | 6 |
| 2018 | 8 | 7 |
| 2019 | 9 | 21 |
| 2020 | 10 | 9 |
| 2021 | 11 | 9 |
| 2022 | 11 | 4 |
| 2023 | 2 | 9 |
| 2024 | 6 | 16 |
| 2025 | 11 | 8 |
| 2026 | 6 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Wirelessly transferring power within an electric machine having AC and DC rotor coils9 Jun 2026US 12,651,992 B2Tau Motors, Inc.
- Brushless alternator5 May 2026US 12,620,849 B2Rapid Power Industries
- Synchronous machine5 May 2026US 12,620,861 B2Mahle International GmbH
- Bipolar induction electric machine10 Mar 2026US 12,573,926 B2PolyWavePower IP Proprietary Limited
- Rectifier assemblies10 Feb 2026US 12,549,075 B2Hamilton Sundstrand Corporation
- Rotating electric machine30 Jul 2026US 2026/0221848 A1Denso Corporation
- Wound-field rotating electric machine16 Jul 2026US 2026/0204971 A1Denso Corporation
- Turbomachine comprising an electric machine provided with a fixed winding, an excitation winding and a rotary winding which are arranged radially2 Jul 2026US 2026/0185457 A1Safran Aircraft Engines
- Brushless alternator18 Jun 2026US 2026/0171859 A1Rapid Power Industries
- Self-excited brushless machine with compensated field windings11 Jun 2026US 2026/0163431 A1The Texas A&M University System
Most cited
By later US patents
- Electric machine with a transformer having a rotating component117US 5,519,275 AColeman Powermate, Inc. · 1996
- Rotating electrical machine with electromagnetic and permanent magnet excitation101US 5,663,605 AFord Motor Company · 1997
- Rotor position detector with back EMF voltage estimation91US 5,384,527 ASundstrand Corporation · 1995
- Dual output synchronous-induction starting/generating system81US 5,587,647 ASundstrand Corporation · 1996
- Variable speed constant frequency generating system77US 4,625,160 ASundstrand Corporation · 1986