H02K 3/16
For auxiliary purposes
Official title: for auxiliary purposes, e.g. damping or commutating
H02K3/16 (For auxiliary purposes) appears on 98 US grants and 86 published applications in this corpus.
Search patents in H02K- Granted patents
- 98
- Published applications
- 86
- Assignees
- 71
- Inventors
- 217
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 2 |
| 2003 | 0 | 0 |
| 2004 | 2 | 2 |
| 2005 | 3 | 3 |
| 2006 | 2 | 1 |
| 2007 | 1 | 2 |
| 2008 | 1 | 2 |
| 2009 | 1 | 2 |
| 2010 | 2 | 3 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 3 |
| 2014 | 2 | 5 |
| 2015 | 1 | 3 |
| 2016 | 1 | 3 |
| 2017 | 4 | 4 |
| 2018 | 5 | 8 |
| 2019 | 5 | 12 |
| 2020 | 10 | 7 |
| 2021 | 8 | 3 |
| 2022 | 2 | 7 |
| 2023 | 9 | 5 |
| 2024 | 6 | 2 |
| 2025 | 1 | 2 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Alternator with rotor lamination stack16 Jun 2026US 12,658,746 B2Generac Power Systems, Inc.
- Motor-driven compressor13 May 2025US 12,301,072 B2Kabushiki Kaisha Toyota Jidoshokki
- Slot cooling fins in electrical machines26 Nov 2024US 12,155,280 B2Hamilton Sundstrand Corporation
- Electric motor, compressor, and refrigeration device12 Nov 2024US 12,142,980 B2Daikin Industries, Ltd.
- Lubricant supported electric motor with electricalconductors functioning as an outer raceway29 Oct 2024US 12,132,367 B2Neapco Intellectual Property Holdings, LLC
- Improved Reverse Magnetic Asynchronous Induction Motor Systems and Methods27 Aug 2026US 2026/0254332 A1Adventech, LLC
- Rotating electric machine30 Jul 2026US 2026/0221848 A1Denso Corporation
- High-efficiency and high-performance stator assembly for a motor16 Jul 2026US 2026/0204969 A1
- Stator2 Jul 2026US 2026/0189095 A1Toyota Jidosha Kabushiki Kaisha
- Stator20 Feb 2025US 2025/0062650 A1Autonetworks Technologies, Ltd.
Most cited
By later US patents
- Electric machine having an integrally continuous stator winding and stator slot bridges1,193US 6,936,948 B2Pratt & Whitney Canada Corp. · 2005
- Architecture for electric machine1,149US 7,583,063 B2Pratt & Whitney Canada Corp. · 2009
- Dynamo electric machine with permanent magnet rotor structure113US 5,650,680 AMarathon Electric Mfg. Corp. · 1997
- Variable speed constant frequency generating system77US 4,625,160 ASundstrand Corporation · 1986
- Architecture for electric machine69US 6,965,183 B2Pratt & Whitney Canada Corp. · 2005