A63B 21/0057
Using electromagnetic clutches
Official title: {using electromagnetic clutches}
A63B21/0057 (Using electromagnetic clutches) appears on 60 US grants and 46 published applications in this corpus.
Search patents in A63B- Granted patents
- 60
- Published applications
- 46
- Assignees
- 30
- Inventors
- 94
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 2 | 2 |
| 2012 | 0 | 1 |
| 2013 | 0 | 2 |
| 2014 | 0 | 3 |
| 2015 | 4 | 2 |
| 2016 | 5 | 2 |
| 2017 | 2 | 2 |
| 2018 | 0 | 5 |
| 2019 | 5 | 5 |
| 2020 | 3 | 4 |
| 2021 | 5 | 3 |
| 2022 | 1 | 4 |
| 2023 | 7 | 3 |
| 2024 | 3 | 3 |
| 2025 | 2 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Freewheel adjustable wheels and fitness bike therewith2 Jun 2026US 12,643,010 B2LG Electronics Inc.
- Rowing system and method27 May 2025US 12,311,223 B2Hydrow, Inc.
- Safety control system for motorized resistance equipment utilizing one-way clutches8 Apr 2025US 12,268,915 B2Schmidt Design, LLC
- Mirror therapy device10 Sep 2024US 12,083,382 B2Atlantic Technological University
- Exercise machine brake system25 Jun 2024US 12,017,107 B2Hydrow, Inc.
- Freewheel adjustable wheel and exercise bike having same5 Jun 2025US 2025/0177801 A1LG Electronics Inc.
- Compact exercise apparatus8 May 2025US 2025/0144462 A1
- Freewheel adjustable wheels and fitness bike therewith30 Jan 2025US 2025/0032850 A1LG Electronics Inc.
- Exercise machine brake system21 Nov 2024US 2024/0382798 A1Hydrow, Inc.
- Safety control system for motorized resistance equipment utilizing one-way clutches28 Mar 2024US 2024/0100381 A1Schmidt Design, LLC
Most cited
By later US patents
- Eccentrically loaded computerized positive/negative exercise machine317US 4,930,770 A1990
- Communication system for an instrumented orthopedic restraining device and method therefor251US 5,929,782 A1999
- Instrumented orthopedic restraining device and method of use143US 5,484,389 A1996
- Instrumented orthopedic restraining device and method of use141US 5,052,375 A1991
- Force feedback devices using fluid braking124US 7,113,166 B1Immersion Corporation · 2006