H02K 19/16
Synchronous generators
H02K19/16 (Synchronous generators) appears on 1,063 US grants and 812 published applications in this corpus.
Search patents in H02K- Granted patents
- 1,063
- Published applications
- 812
- Assignees
- 369
- Inventors
- 1,701
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 11 | 0 |
| 1978 | 14 | 0 |
| 1979 | 13 | 0 |
| 1980 | 9 | 0 |
| 1981 | 15 | 0 |
| 1982 | 11 | 0 |
| 1983 | 7 | 0 |
| 1984 | 14 | 0 |
| 1985 | 12 | 0 |
| 1986 | 10 | 0 |
| 1987 | 11 | 0 |
| 1988 | 16 | 0 |
| 1989 | 14 | 0 |
| 1990 | 22 | 0 |
| 1991 | 16 | 0 |
| 1992 | 11 | 0 |
| 1993 | 15 | 0 |
| 1994 | 12 | 0 |
| 1995 | 12 | 0 |
| 1996 | 10 | 0 |
| 1997 | 18 | 0 |
| 1998 | 23 | 0 |
| 1999 | 31 | 0 |
| 2000 | 36 | 0 |
| 2001 | 29 | 7 |
| 2002 | 22 | 21 |
| 2003 | 17 | 31 |
| 2004 | 25 | 26 |
| 2005 | 20 | 31 |
| 2006 | 24 | 38 |
| 2007 | 16 | 40 |
| 2008 | 23 | 41 |
| 2009 | 31 | 26 |
| 2010 | 34 | 32 |
| 2011 | 27 | 34 |
| 2012 | 28 | 28 |
| 2013 | 19 | 27 |
| 2014 | 29 | 47 |
| 2015 | 18 | 26 |
| 2016 | 22 | 41 |
| 2017 | 34 | 38 |
| 2018 | 33 | 41 |
| 2019 | 43 | 61 |
| 2020 | 59 | 38 |
| 2021 | 37 | 32 |
| 2022 | 31 | 26 |
| 2023 | 14 | 20 |
| 2024 | 24 | 29 |
| 2025 | 22 | 20 |
| 2026 | 12 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H02K 19/36Structural association of synchronous generators with auxiliary electric devices influencing the characteristic314
- H02K 19/22Having windings each turn of which co-operates alternately with poles of opposite304
- H02K 19/26Characterised by the arrangement of exciting windings209
- H02K 19/38Structural association of synchronous generators with exciting machines134
- H02K 19/18Having windings each turn of which co-operates only with poles of one94
- H02K 19/34Generators with two or more outputs90
Recent patents
- Synthetic generator synchronization6 Oct 2026US 12,756,339 B2Google Inc.
- Method and apparatus for cooling a rotor assembly22 Sep 2026US 12,744,427 B2GE Aviation Systems LLC
- Alternator with rotor lamination stack16 Jun 2026US 12,658,746 B2Generac Power Systems, Inc.
- 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
- Drive axle for an electric vehicle24 Sep 2026US 2026/0291338 A1ZF Friedrichshafen AG
- Synchronous electric machine with fixed clawed inductor17 Sep 2026US 2026/0280362 A1
- Field winding type rotary electric machine13 Aug 2026US 2026/0238102 A1Denso Corporation
- Rotating electric machine30 Jul 2026US 2026/0221848 A1Denso Corporation
- Wound-field rotating electric machine16 Jul 2026US 2026/0204971 A1Denso Corporation
Most cited
By later US patents
- Polyphase brushless DC and AC synchronous machines223US 5,334,899 A1994
- Hybrid alternator213US 5,747,909 AEcoair Corp. · 1998
- System and method for providing low voltage 3-phase power in a vehicle132US 7,521,814 B2Oshkosh Truck Corporation · 2009
- Alternator for an automotive vehicle130US 5,998,903 ADenso Corporation · 1999
- Electric machine with a transformer having a rotating component117US 5,519,275 AColeman Powermate, Inc. · 1996