H02K 17/42
Asynchronous induction generators
Official title: Asynchronous induction generators (H02K17/02 takes precedence)
H02K17/42 (Asynchronous induction generators) appears on 84 US grants and 75 published applications in this corpus.
Search patents in H02K- Granted patents
- 84
- Published applications
- 75
- Assignees
- 60
- Inventors
- 221
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 2 |
| 2002 | 2 | 2 |
| 2003 | 0 | 1 |
| 2004 | 3 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 1 | 1 |
| 2010 | 1 | 5 |
| 2011 | 3 | 3 |
| 2012 | 3 | 3 |
| 2013 | 4 | 2 |
| 2014 | 1 | 1 |
| 2015 | 1 | 4 |
| 2016 | 1 | 7 |
| 2017 | 2 | 1 |
| 2018 | 3 | 5 |
| 2019 | 4 | 6 |
| 2020 | 4 | 4 |
| 2021 | 4 | 7 |
| 2022 | 4 | 3 |
| 2023 | 3 | 5 |
| 2024 | 4 | 3 |
| 2025 | 4 | 2 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Energy harvester using electromagnetic induction and energy harvesting block7 Apr 2026US 12,597,826 B2Huject
- Transverse flux asynchronous electric machine31 Mar 2026US 12,592,622 B2The Boeing Company
- Electrical machine and method of operating electrical machine27 Jan 2026US 12,537,426 B2GE Aviation Systems LLC
- Electro-magnetic generator with pendulum structure for converting kinetic energy to electrical energy6 May 2025US 12,294,259 B1
- Dynamoelectric machine having cooling of the slip ring system4 Mar 2025US 12,244,189 B2Flender GmbH
- Transverse flux asynchronous electric machine30 Jul 2026US 2026/0221855 A1The Boeing Company
- Electrical machine and method of operating electrical machine7 May 2026US 2026/0128651 A1GE Aviation Systems LLC
- Stator construction for wind turbine generators2 Apr 2026US 2026/0095081 A1
- Rotor construction for wind turbine generators2 Apr 2026US 2026/0095082 A1
- Transverse flux asynchronous electric machine20 Feb 2025US 2025/0062667 A1The Boeing Company
Most cited
By later US patents
- Method and apparatus for transducerless position and velocity estimation in drives for AC machines138US 5,585,709 AWisconsin Alumni Research Foundation · 1996
- Method and apparatus for transducerless position and velocity estimation in drives for AC machines124US 5,565,752 AWisconsin Alumni Research Foundation · 1996
- Dual output synchronous-induction starting/generating system81US 5,587,647 ASundstrand Corporation · 1996
- Apparatus and method for controlling the output frequency of a wind-driven alternator70US 4,906,060 ATwind Energy Corporation · 1990
- Energy converter58US 4,558,228 A1985