A63B 21/022
With springs acting at different parts of the stroke
Official title: {with springs acting at different parts of the stroke}
A63B21/022 (With springs acting at different parts of the stroke) appears on 37 US grants and 40 published applications in this corpus.
Search patents in A63B- Granted patents
- 37
- Published applications
- 40
- Assignees
- 17
- Inventors
- 59
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 3 |
| 2011 | 1 | 0 |
| 2012 | 1 | 4 |
| 2013 | 2 | 3 |
| 2014 | 0 | 1 |
| 2015 | 3 | 4 |
| 2016 | 7 | 7 |
| 2017 | 1 | 2 |
| 2018 | 3 | 0 |
| 2019 | 0 | 2 |
| 2020 | 2 | 2 |
| 2021 | 2 | 4 |
| 2022 | 4 | 2 |
| 2023 | 2 | 1 |
| 2024 | 1 | 2 |
| 2025 | 3 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Sacroiliac joint exercise device27 Mar 2025US 2025/0099806 A1SIJ Therapeutics, LLC
- Exercise apparatus, system, and method7 Nov 2024US 2024/0366993 A1Stellar Innovations LLC
- Convertible exercise machine11 Jan 2024US 2024/0009512 A1The Minter Method, LLC
- Methods, systems, and apparatuses for reciprocal muscle activation and release8 Jun 2023US 2023/0173320 A1BreathCore, Inc.
- Bendable Exercise Bar15 Sep 2022US 2022/0288459 A1
Most cited
By later US patents
- Swing exerciser45US 6,537,184 B2Kellion Corporation · 2003
- Spring-type exercise device39US 4,775,149 A1988
- Adjustable resistance training apparatus20US 7,998,037 B2Spri Products, Inc. · 2011
- Portable devices for exercising muscles in the ankle, foot, and/or leg, and related methods17US 10,702,740 B2Ts Medical LLC · 2020
- Variable compression resistance exercise device16US 4,842,273 A1989