A63B 21/0087
Of the piston-cylinder type
Official title: {of the piston-cylinder type (using hydraulic piston-cylinder type force resistors A63B21/0083)}
A63B21/0087 (Of the piston-cylinder type) appears on 440 US grants and 424 published applications in this corpus.
Search patents in A63B- Granted patents
- 440
- Published applications
- 424
- Assignees
- 148
- Inventors
- 575
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 8 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 10 | 0 |
| 1995 | 9 | 0 |
| 1996 | 9 | 0 |
| 1997 | 6 | 0 |
| 1998 | 6 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 6 | 6 |
| 2003 | 1 | 7 |
| 2004 | 5 | 12 |
| 2005 | 3 | 14 |
| 2006 | 5 | 16 |
| 2007 | 9 | 26 |
| 2008 | 15 | 16 |
| 2009 | 18 | 11 |
| 2010 | 12 | 19 |
| 2011 | 20 | 16 |
| 2012 | 12 | 12 |
| 2013 | 12 | 15 |
| 2014 | 9 | 15 |
| 2015 | 17 | 18 |
| 2016 | 30 | 36 |
| 2017 | 24 | 35 |
| 2018 | 29 | 31 |
| 2019 | 32 | 20 |
| 2020 | 23 | 18 |
| 2021 | 14 | 15 |
| 2022 | 15 | 18 |
| 2023 | 15 | 11 |
| 2024 | 11 | 16 |
| 2025 | 8 | 10 |
| 2026 | 8 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Exercise machine enhancements8 Sep 2026US 12,728,309 B2Tonal Systems, Inc.
- Isokinetic and isometric strength assessment, rehabilitation and exercise machine9 Jun 2026US 12,649,080 B1Poseidon Strength, LLC
- First repetition detection9 Jun 2026US 12,649,083 B2Tonal Systems, Inc.
- Exercise apparatus21 Apr 2026US 12,605,592 B2
- Tilting smith exercise machine with movable structures10 Mar 2026US 12,569,714 B2Bulletproof Fitness Equipment Inc
- Exercise machine enhancements8 Oct 2026US 2026/0306901 A1Tonal Systems, Inc.
- Leg-training exerciser30 Jul 2026US 2026/0216561 A1
- Leg-training exerciser23 Jul 2026US 2026/0207991 A1
- Auxiliary device for pull-ups25 Jun 2026US 2026/0175065 A1Zhejiang Dabang Sports Equipment Co., Ltd
- Mountain Climbing Machine18 Jun 2026US 2026/0166375 A1Yongkang Yige Industry and Trade Co., Ltd
Most cited
By later US patents
- Exercise device234US 5,290,211 AStearns Technologies, Inc. · 1994
- Aerobic and anaerobic exercise machine187US 5,527,245 AICON Health & Fitness, Inc. · 1996
- Aerobic and anaerobic exercise machine172US 5,860,894 AICON Health & Fitness, Inc. · 1999
- Dual action exercise cycle158US 4,971,316 AProform Fitness Products, Inc. · 1990
- Exercise device137US 5,401,226 AStearns Technologies, Inc. · 1995