H02K 1/2798
Where both axial sides of the stator face a rotor
Official title: where both axial sides of the stator face a rotor
H02K1/2798 (Where both axial sides of the stator face a rotor) appears on 154 US grants and 250 published applications in this corpus.
Search patents in H02K- Granted patents
- 154
- Published applications
- 250
- Assignees
- 116
- Inventors
- 442
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 3 | 4 |
| 2005 | 2 | 4 |
| 2006 | 1 | 2 |
| 2007 | 1 | 1 |
| 2008 | 1 | 4 |
| 2009 | 4 | 2 |
| 2010 | 2 | 5 |
| 2011 | 1 | 4 |
| 2012 | 1 | 9 |
| 2013 | 3 | 5 |
| 2014 | 4 | 4 |
| 2015 | 5 | 9 |
| 2016 | 5 | 10 |
| 2017 | 5 | 8 |
| 2018 | 8 | 16 |
| 2019 | 8 | 10 |
| 2020 | 15 | 16 |
| 2021 | 15 | 10 |
| 2022 | 10 | 28 |
| 2023 | 17 | 24 |
| 2024 | 16 | 34 |
| 2025 | 15 | 24 |
| 2026 | 6 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Composite structures for electric motors2 Jun 2026US 12,646,987 B2The Texas A&M University System
- Method and device for testing an smc stator core3 Sep 2026US 2026/0259267 A1Schaeffler Technologies AG & Co. KG
- Electric machine having improved cooling structure27 Aug 2026US 2026/0254318 A1Korea Electrotechnology Research Institute
- Stator of an axial flux electric machine30 Jul 2026US 2026/0221834 A1Valeo Electrification
- Electric pump with printed circuit board stator11 Jun 2026US 2026/0160255 A1
- Housing for axial flux motor assemblies23 Apr 2026US 2026/0112954 A1E-Circuit Motors, Inc.
Most cited
By later US patents
- Axial gap dual permanent magnet generator84US 5,245,238 ASundstrand Corporation · 1993
- Cascaded rotary electric motors having axial and radial air gaps69US 6,762,525 B1Wavecrest Laboratories, LLC · 2004
- PM motor and generator with a vertical stator core assembly formed of pressure shaped processed ferromagnetic particles67US 6,707,224 B1Petersen Technology Corporation · 2004
- Axial field electrical generator64US 5,021,698 AROLLS-ROYCE plc · 1991
- Rotary electric motor having both radial and axial air gap flux paths between stator and rotor segments64US 6,891,306 B1Wavecrest Laboratories, LLC · 2005