H02K 3/34
Between conductors or between conductor and core
Official title: between conductors or between conductor and core, e.g. slot insulation
H02K3/34 (Between conductors or between conductor and core) appears on 1,087 US grants and 1,414 published applications in this corpus.
Search patents in H02K- Granted patents
- 1,087
- Published applications
- 1,414
- Assignees
- 416
- Inventors
- 2,761
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 8 | 0 |
| 2000 | 11 | 0 |
| 2001 | 11 | 4 |
| 2002 | 15 | 15 |
| 2003 | 13 | 10 |
| 2004 | 14 | 17 |
| 2005 | 11 | 19 |
| 2006 | 11 | 21 |
| 2007 | 9 | 13 |
| 2008 | 8 | 16 |
| 2009 | 9 | 22 |
| 2010 | 18 | 16 |
| 2011 | 16 | 17 |
| 2012 | 9 | 40 |
| 2013 | 18 | 49 |
| 2014 | 20 | 61 |
| 2015 | 17 | 76 |
| 2016 | 43 | 58 |
| 2017 | 69 | 67 |
| 2018 | 45 | 89 |
| 2019 | 78 | 110 |
| 2020 | 87 | 118 |
| 2021 | 74 | 107 |
| 2022 | 89 | 93 |
| 2023 | 80 | 93 |
| 2024 | 92 | 113 |
| 2025 | 83 | 87 |
| 2026 | 52 | 83 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Edge sealed slot liner6 Oct 2026US 12,756,255 B23M Innovative Properties Company
- Electric motor29 Sep 2026US 12,749,933 B2Milwaukee Electric Tool Corporation
- Armature and driving device29 Sep 2026US 12,749,939 B2Sumitomo Heavy Industries, Ltd.
- Rotary electrical machine22 Sep 2026US 12,744,423 B2Mitsubishi Electric Corporation
- Refurbishing wind turbine generator stator winding with winding conversions22 Sep 2026US 12,744,437 B2Timken Gears & Services Inc.
- Method of manufacturing stator, and stator of rotating electric machine1 Oct 2026US 2026/0302861 A1Honda Motor Co., Ltd.
- Winding for a stator of an electric machine, comprising a further insulation surrounding an individual wire insulation1 Oct 2026US 2026/0302865 A1Schaeffler Technologies AG & Co. KG
- Stator of an electric machine1 Oct 2026US 2026/0302866 A1Robert Bosch GmbH
- Stator24 Sep 2026US 2026/0291299 A1Denso Corporation
- Core sleeve arrangement for an axial flux machine24 Sep 2026US 2026/0291304 A1Magnax BV
Most cited
By later US patents
- Alternator for an automotive vehicle130US 5,998,903 ADenso Corporation · 1999
- Materials and impregnating compositions for insulating electric machines95US 4,160,926 AThe Epoxylite Corporation · 1979
- Motor having stator with insulator of high heat-conductivity94US 6,509,665 B1Matsushita Electric Industial Co., Ltd. · 2003
- Stator with molded encasement for small motors and manufacturing process therefor88US 6,075,304 AAlon, Inc. · 2000
- Alternator74US 6,501,205 B1Mitsubishi Denki Kabushiki Kaisha · 2002