H02K 3/04
Windings characterised by the conductor shape, form or construction
Official title: Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
H02K3/04 (Windings characterised by the conductor shape, form or construction) appears on 5,941 US grants and 6,865 published applications in this corpus.
Search patents in H02K- Granted patents
- 5,941
- Published applications
- 6,865
- Assignees
- 1,746
- Inventors
- 10,672
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 28 | 0 |
| 1977 | 18 | 0 |
| 1978 | 24 | 0 |
| 1979 | 19 | 0 |
| 1980 | 20 | 0 |
| 1981 | 25 | 0 |
| 1982 | 37 | 0 |
| 1983 | 19 | 0 |
| 1984 | 24 | 0 |
| 1985 | 25 | 0 |
| 1986 | 19 | 0 |
| 1987 | 27 | 0 |
| 1988 | 18 | 0 |
| 1989 | 33 | 0 |
| 1990 | 26 | 0 |
| 1991 | 22 | 0 |
| 1992 | 24 | 0 |
| 1993 | 30 | 0 |
| 1994 | 32 | 0 |
| 1995 | 37 | 0 |
| 1996 | 32 | 0 |
| 1997 | 51 | 0 |
| 1998 | 74 | 0 |
| 1999 | 86 | 0 |
| 2000 | 68 | 0 |
| 2001 | 80 | 28 |
| 2002 | 101 | 147 |
| 2003 | 76 | 94 |
| 2004 | 121 | 105 |
| 2005 | 114 | 121 |
| 2006 | 80 | 108 |
| 2007 | 66 | 100 |
| 2008 | 50 | 107 |
| 2009 | 75 | 118 |
| 2010 | 111 | 178 |
| 2011 | 103 | 183 |
| 2012 | 104 | 157 |
| 2013 | 138 | 195 |
| 2014 | 135 | 272 |
| 2015 | 110 | 264 |
| 2016 | 163 | 361 |
| 2017 | 257 | 434 |
| 2018 | 278 | 396 |
| 2019 | 426 | 441 |
| 2020 | 387 | 479 |
| 2021 | 377 | 471 |
| 2022 | 370 | 529 |
| 2023 | 343 | 444 |
| 2024 | 450 | 457 |
| 2025 | 385 | 363 |
| 2026 | 223 | 313 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electric rotating machine and method and vehicle comprising electric machine6 Oct 2026US 12,756,253 B2Traton AB
- Rotating electrical machine6 Oct 2026US 12,756,254 B2Honda Motor Co., Ltd.
- Electric motor29 Sep 2026US 12,749,933 B2Milwaukee Electric Tool Corporation
- Stator for an electric machine, production method for such a stator in an electric machine29 Sep 2026US 12,749,937 B2Mahle International GmbH
- Distributed winding29 Sep 2026US 12,749,938 B2ZF Friedrichshafen AG
- Implantable electromagnetic pumps8 Oct 2026US 2026/0306297 A1Verily Health Inc.
- Articulated ring wing evtol structure with distributed propulsion and advanced dynamic payload stabilization system and integrated energy regeneration and safety systems8 Oct 2026US 2026/0307829 A1Aerial MECHANICA Inc.
- Axial flow machine having a stator and optimized cooling of the pole shoes8 Oct 2026US 2026/0312443 A1Schaeffler Technologies AG & Co. KG
- Improvements relating to cooling of electric machines8 Oct 2026US 2026/0312450 A1Vestas Wind Systems A/S
- Stator for an electric machine and method for producing a stator8 Oct 2026US 2026/0312451 A1Schaeffler Technologies AG & Co. KG
Most cited
By later US patents
- Methods and apparatus for increasing power of permanent magnet motors1,432US 6,777,838 B22004
- 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
- Coil winding number variable type motor and coil winding number varying method for varying cooling and heating capacity of reciprocating compressor1,021US 6,841,967 B2LG Electronics Inc. · 2005
- Ultrasonic instrument with a micro motor246US 5,375,602 ADu-Med B.V. · 1994