H02K 7/20
Structural association with auxiliary dynamo-electric machines
Official title: Structural association with auxiliary dynamo-electric machines, e.g. with electric starter motors or exciters
H02K7/20 (Structural association with auxiliary dynamo-electric machines) appears on 180 US grants and 139 published applications in this corpus.
Search patents in H02K- Granted patents
- 180
- Published applications
- 139
- Assignees
- 130
- Inventors
- 405
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 6 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 3 | 4 |
| 2003 | 2 | 2 |
| 2004 | 3 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 4 |
| 2007 | 1 | 2 |
| 2008 | 2 | 1 |
| 2009 | 0 | 2 |
| 2010 | 2 | 2 |
| 2011 | 5 | 7 |
| 2012 | 2 | 0 |
| 2013 | 2 | 2 |
| 2014 | 2 | 1 |
| 2015 | 1 | 5 |
| 2016 | 3 | 5 |
| 2017 | 2 | 4 |
| 2018 | 8 | 8 |
| 2019 | 6 | 13 |
| 2020 | 9 | 16 |
| 2021 | 12 | 12 |
| 2022 | 13 | 6 |
| 2023 | 8 | 7 |
| 2024 | 7 | 17 |
| 2025 | 5 | 7 |
| 2026 | 3 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System for clean, renewable and sustainable power generation15 Sep 2026US 12,738,806 B2Eko Kuasa Technology Sdn Bhd
- Mechanical renewable green energy production7 Jul 2026US 12,674,503 B2Phos Global Energy Solutions, Inc.
- Motor starter without contactor3 Mar 2026US 12,567,783 B2Saudi Arabian Oil Company
- Motor-alternator-motor (MAM) systems and methods for using same30 Dec 2025US 12,512,743 B2
- Dual motor actuator and method of controlling the same7 Oct 2025US 12,438,418 B2Korea Aerospace Research Institute
- Aircraft turbomachine propeller comprising a system for autonomous supply of heating members for de-icing and associated method24 Sep 2026US 2026/0285493 A1Safran Electrical & Power
- Mechanically coupled hybrid generator24 Sep 2026US 2026/0291327 A1Alliance North America, Inc.
- Electro- Mechanical High-Pressure Oilfield Pumping System23 Jul 2026US 2026/0210227 A1Twin Disc, Incorporated
- Multiple electric motors on a single shaft28 May 2026US 2026/0149333 A1Black & Decker Inc.
- Power transfer system30 Apr 2026US 2026/0117708 A1General Electric Company
Most cited
By later US patents
- Harmonic electric actuator111US 4,398,110 AWestinghouse Electric Corp. · 1983
- Linear motor-driven conveyor means79US 4,800,818 AHitachi Kiden Kogyo Kabushiki Kaisha · 1989
- Versatile AC dynamo-electric machine73US 5,838,085 APrecise Power Corporation · 1998
- DC rotary machine67US 4,259,604 ACanon Kabushiki Kaisha · 1981
- Versatile AC dynamo-electric machine60US 5,990,590 APrecise Power Corporation · 1999