H02K 49/00
Dynamo-electric clutches
Official title: Dynamo-electric clutches; Dynamo-electric brakes
H02K49/00 (Dynamo-electric clutches) appears on 1,353 US grants and 1,268 published applications in this corpus.
Search patents in H02K- Granted patents
- 1,353
- Published applications
- 1,268
- Assignees
- 784
- Inventors
- 2,542
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 7 | 0 |
| 1978 | 10 | 0 |
| 1979 | 12 | 0 |
| 1980 | 14 | 0 |
| 1981 | 9 | 0 |
| 1982 | 9 | 0 |
| 1983 | 11 | 0 |
| 1984 | 12 | 0 |
| 1985 | 5 | 0 |
| 1986 | 11 | 0 |
| 1987 | 14 | 0 |
| 1988 | 22 | 0 |
| 1989 | 21 | 0 |
| 1990 | 9 | 0 |
| 1991 | 17 | 0 |
| 1992 | 13 | 0 |
| 1993 | 18 | 0 |
| 1994 | 15 | 0 |
| 1995 | 17 | 0 |
| 1996 | 15 | 0 |
| 1997 | 23 | 0 |
| 1998 | 26 | 0 |
| 1999 | 32 | 0 |
| 2000 | 26 | 0 |
| 2001 | 32 | 6 |
| 2002 | 17 | 24 |
| 2003 | 12 | 19 |
| 2004 | 29 | 28 |
| 2005 | 17 | 24 |
| 2006 | 20 | 25 |
| 2007 | 18 | 50 |
| 2008 | 23 | 46 |
| 2009 | 18 | 28 |
| 2010 | 27 | 36 |
| 2011 | 32 | 53 |
| 2012 | 16 | 51 |
| 2013 | 40 | 50 |
| 2014 | 31 | 70 |
| 2015 | 42 | 66 |
| 2016 | 50 | 68 |
| 2017 | 47 | 63 |
| 2018 | 55 | 73 |
| 2019 | 71 | 60 |
| 2020 | 58 | 71 |
| 2021 | 57 | 70 |
| 2022 | 51 | 64 |
| 2023 | 61 | 59 |
| 2024 | 50 | 80 |
| 2025 | 62 | 41 |
| 2026 | 35 | 43 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H02K 49/10Dynamo-electric clutches: of the permanent-magnet type881
- H02K 49/02Dynamo-electric clutches: of the asynchronous induction type413
- H02K 49/06Dynamo-electric clutches: of the synchronous type132
- H02K 49/08Dynamo-electric clutches: of the collector armature type10
- H02K 49/12Dynamo-electric clutches: of the acyclic type2
Recent patents
- Brake apparatus, wheel body assembly and rollator29 Sep 2026US 12,746,173 B2Zhejiang Yihengyue Medical Technology Co., Ltd
- Magnetic coupler for retrofit propulsion system22 Sep 2026US 12,744,445 B2Integrated Technologies Group
- Motor assembly for an appliance such as a vacuum cleaner and a vacuum cleaner having same15 Sep 2026US 12,736,058 B2Omachron Intellectual Property Inc.
- Magnetic coupling assembly25 Aug 2026US 12,719,344 B2
- Magnetic gear systems, methods, and apparatuses18 Aug 2026US 12,712,423 B2Board of Regents, The University of Texas System
- Systems and methods for power generation, transmission, amplification and/or storage8 Oct 2026US 2026/0312461 A1Green Lab IP Nominee Pty Ltd
- Magnetically-driven phase separator1 Oct 2026US 2026/0295471 A1Honeywell International Inc.
- Electric power transmission device and motor apparatus1 Oct 2026US 2026/0302910 A1TDK Corporation
- Wireless power magnetic clutch assembly24 Sep 2026US 2026/0285606 A1Dematic Corp.
- Pull pump motor for fitness equipment10 Sep 2026US 2026/0263860 A1Kerui Technology (Dongguan) Co., Ltd
Most cited
By later US patents
- Method and apparatus for cardiac blood flow assistance452US 5,964,694 AGuidant Corporation · 1999
- Method and apparatus for cardiac blood flow assistance397US 5,911,685 AGuidant Corporation · 1999
- Statorless intravascular microaxial flow pump272US 5,921,913 AGuidant Corporation · 1999
- Permanent magnet type pump263US 4,115,040 AFranz Klaus-Union · 1978
- Intracardiac pump device261US 6,139,487 AImpella Cardiotechnik Aktiengesellschaft · 2000