H02K 49/04
Of the eddy-current hysteresis type
Official title: of the eddy-current hysteresis type
H02K49/04 (Of the eddy-current hysteresis type) appears on 391 US grants and 323 published applications in this corpus.
Search patents in H02K- Granted patents
- 391
- Published applications
- 323
- Assignees
- 192
- Inventors
- 633
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 7 | 0 |
| 1984 | 7 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 6 | 0 |
| 1989 | 7 | 0 |
| 1990 | 1 | 0 |
| 1991 | 11 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 6 | 0 |
| 1996 | 3 | 0 |
| 1997 | 9 | 0 |
| 1998 | 10 | 0 |
| 1999 | 10 | 0 |
| 2000 | 7 | 0 |
| 2001 | 15 | 3 |
| 2002 | 5 | 8 |
| 2003 | 5 | 9 |
| 2004 | 7 | 7 |
| 2005 | 5 | 6 |
| 2006 | 5 | 6 |
| 2007 | 5 | 8 |
| 2008 | 3 | 12 |
| 2009 | 4 | 10 |
| 2010 | 4 | 3 |
| 2011 | 5 | 8 |
| 2012 | 3 | 6 |
| 2013 | 7 | 15 |
| 2014 | 7 | 19 |
| 2015 | 10 | 23 |
| 2016 | 17 | 23 |
| 2017 | 12 | 19 |
| 2018 | 19 | 18 |
| 2019 | 18 | 15 |
| 2020 | 17 | 23 |
| 2021 | 13 | 19 |
| 2022 | 18 | 21 |
| 2023 | 19 | 9 |
| 2024 | 11 | 15 |
| 2025 | 17 | 11 |
| 2026 | 5 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Eddy current magnetic braking device, braked vehicle wheel and aircraft landing gear equipped with such a wheel5 May 2026US 12,620,882 B2Safran Landing Systems
- Magnetic flux modulated type magnetic gear3 Mar 2026US 12,567,790 B2Mitsubishi Electric Corporation
- Eddy current magnetic braking device, braked vehicle wheel and aircraft landing gear equipped with such a wheel3 Feb 2026US 12,542,474 B2Safran Landing Systems
- Magnetic camera brake3 Feb 2026US 12,542,959 B2Apple Inc.
- Brake for motor27 Jan 2026US 12,535,110 B2Harmonic Drive Systems Inc.
- Magnetic coupling assembly10 Sep 2026US 2026/0269701 A1Qupling Group B.V.
- Magnetic coupling assembly10 Sep 2026US 2026/0269702 A1Qupling Group B.V.
- Eddy current retarder6 Aug 2026US 2026/0225460 A1Nippon Steel Corporation
- Electric machine with integrated eddy current brake2 Jul 2026US 2026/0189102 A1
- Induction device, in particular for an electrodynamic brake, and electrodynamic brake16 Apr 2026US 2026/0106529 A1Deutsches Zentrum für Luft- und Raumfahrt e. V.
Most cited
By later US patents
- Stationary exercise equipment166US 7,833,135 B22010
- Magnetic adjustable loading device with eddy current91US 5,711,404 A1998
- Bicycle ergometer and eddy current brake therefor86US 4,817,938 ACombi Corporation · 1989
- Braking system for an amusement device68US 6,062,350 A2000
- Permanent magnet coupling and transmission63US 5,477,093 AMagna Force, Inc. · 1995