H02K 1/145
Having an annular coil
Official title: {having an annular coil, e.g. of the claw-pole type}
H02K1/145 (Having an annular coil) appears on 435 US grants and 528 published applications in this corpus.
Search patents in H02K- Granted patents
- 435
- Published applications
- 528
- Assignees
- 235
- Inventors
- 931
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 12 | 0 |
| 2001 | 9 | 3 |
| 2002 | 11 | 30 |
| 2003 | 11 | 15 |
| 2004 | 28 | 22 |
| 2005 | 19 | 22 |
| 2006 | 18 | 31 |
| 2007 | 15 | 31 |
| 2008 | 14 | 33 |
| 2009 | 12 | 22 |
| 2010 | 31 | 13 |
| 2011 | 13 | 18 |
| 2012 | 13 | 7 |
| 2013 | 9 | 18 |
| 2014 | 13 | 20 |
| 2015 | 3 | 18 |
| 2016 | 12 | 17 |
| 2017 | 18 | 22 |
| 2018 | 13 | 23 |
| 2019 | 23 | 16 |
| 2020 | 25 | 28 |
| 2021 | 15 | 16 |
| 2022 | 15 | 25 |
| 2023 | 19 | 23 |
| 2024 | 21 | 15 |
| 2025 | 13 | 21 |
| 2026 | 3 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Rotating electrical machine with high efficiency, high torque density, and reduced usage of rare metals17 Sep 2026US 2026/0280368 A1Panasonic Intellectual Property Management Co., Ltd.
- Electric machine23 Jul 2026US 2026/0213586 A1Electric Torque Machines, Inc.
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Most cited
By later US patents
- Electric motor having snap connection assembly80US 6,232,687 B1General Electric Company · 2001
- High-efficiency parallel-pole molded-magnetic flux channels transverse wound motor-dynamo61US 7,579,742 B12009
- Electromagnetic machines with permanent magnet excitation59US 4,237,396 AP A Management Consultants Limited · 1980
- Fluid pump with a motor housing and method for producing a motor housing48US 6,663,362 B1Robert Bosch GmbH · 2003
- Electric stepper motor46US 5,369,324 ALyng Elektronikk A-S · 1994