A63B 21/012

Exercising apparatus for developing or strengthening the muscles or joints of the

Official title: using frictional force-resisters {(electromagnetically-controlled brakes A63B21/0056)}

A63B21/012 (Exercising apparatus for developing or strengthening the muscles or joints of the) appears on 1,554 US grants and 1,180 published applications in this corpus.

Search patents in A63B

Granted patents: 1,554
Published applications: 1,180
Assignees: 430
Inventors: 1,831
Latest grant: 29 Sep 2026

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A63B 21/012: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	8	0
1977	7	0
1978	5	0
1979	8	0
1980	8	0
1981	13	0
1982	11	0
1983	11	0
1984	13	0
1985	16	0
1986	24	0
1987	24	0
1988	18	0
1989	20	0
1990	37	0
1991	27	0
1992	25	0
1993	28	0
1994	36	0
1995	23	0
1996	36	0
1997	27	0
1998	43	0
1999	22	0
2000	28	0
2001	26	8
2002	12	21
2003	15	23
2004	26	29
2005	12	29
2006	29	36
2007	21	53
2008	28	34
2009	30	31
2010	37	37
2011	57	52
2012	24	37
2013	26	53
2014	36	54
2015	48	69
2016	82	79
2017	74	80
2018	67	85
2019	71	60
2020	61	58
2021	41	65
2022	67	58
2023	41	45
2024	49	40
2025	41	33
2026	15	11

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

Exercising apparatus for developing or strengthening the muscles or joints of the

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