A63B 21/002
Isometric or isokinetic, i.e. substantial force variation without substantial muscle motion or
Official title: isometric or isokinetic, i.e. substantial force variation without substantial muscle motion {or wherein the speed of the motion is independent of the force applied by the user}
A63B21/002 (Isometric or isokinetic, i.e. substantial force variation without substantial muscle motion or) appears on 588 US grants and 641 published applications in this corpus.
Search patents in A63B- Granted patents
- 588
- Published applications
- 641
- Assignees
- 264
- Inventors
- 965
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 7 | 0 |
| 1990 | 8 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 8 | 0 |
| 1994 | 14 | 0 |
| 1995 | 6 | 0 |
| 1996 | 12 | 0 |
| 1997 | 7 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 8 | 0 |
| 2001 | 13 | 0 |
| 2002 | 6 | 6 |
| 2003 | 7 | 11 |
| 2004 | 4 | 17 |
| 2005 | 5 | 13 |
| 2006 | 10 | 23 |
| 2007 | 11 | 17 |
| 2008 | 5 | 18 |
| 2009 | 5 | 19 |
| 2010 | 22 | 24 |
| 2011 | 14 | 20 |
| 2012 | 12 | 29 |
| 2013 | 15 | 21 |
| 2014 | 6 | 24 |
| 2015 | 22 | 34 |
| 2016 | 25 | 40 |
| 2017 | 36 | 38 |
| 2018 | 28 | 42 |
| 2019 | 33 | 40 |
| 2020 | 40 | 42 |
| 2021 | 24 | 34 |
| 2022 | 39 | 29 |
| 2023 | 27 | 23 |
| 2024 | 26 | 30 |
| 2025 | 30 | 27 |
| 2026 | 10 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Muscle activation assembly system and method18 Aug 2026US 12,708,584 B2IQInvestments Corporation Pty. Ltd.
- Isometric, dynamic isotonic concentric and dynamic isotonic eccentric motorized guidance exercise apparatus11 Aug 2026US 12,702,888 B2
- Exercise device28 Jul 2026US 12,691,323 B2
- Isokinetic and isometric strength assessment, rehabilitation and exercise machine9 Jun 2026US 12,649,080 B1Poseidon Strength, LLC
- Method of performing a plank style exercise and device for use therewith5 May 2026US 12,616,870 B2Plankcore Assist LLC
- Controlled Squat Strength-Training Machine3 Sep 2026US 2026/0257101 A1
- Limb exercise device6 Aug 2026US 2026/0224940 A1Ai Rehab Limited
- Assisted unracking of digital resistance23 Jul 2026US 2026/0207987 A1Tonal Systems, Inc.
- System and Method for Using an Exercise Machine to Improve Completion of an Exercise2 Jul 2026US 2026/0183617 A1ROM Technologies, Inc.
- Pelvic fulcrum support18 Jun 2026US 2026/0166359 A1Steinberg Holdings, LLC
Most cited
By later US patents
- Apparatus for training the muscles of the female pelvic diaphragm1,074US 5,354,250 A1994
- Communication system for an instrumented orthopedic restraining device and method therefor384US 6,515,593 B1IZEX Technologies, Inc. · 2003
- Computer controlled exercise machine254US 4,869,497 AUniversal Gym Equipment, Inc. · 1989
- Communication system for an instrumented orthopedic restraining device and method therefor251US 5,929,782 A1999
- Computerized drive mechanism for exercise, physical therapy and rehabilitation200US 4,919,418 A1990