A63B 21/4011
To the lower limbs
Official title: {to the lower limbs (means for physically limiting movements of body parts A63B69/0057)}
A63B21/4011 (To the lower limbs) appears on 1,217 US grants and 1,402 published applications in this corpus.
Search patents in A63B- Granted patents
- 1,217
- Published applications
- 1,402
- Assignees
- 418
- Inventors
- 2,112
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 7 | 0 |
| 1982 | 3 | 0 |
| 1983 | 7 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 6 | 0 |
| 1987 | 6 | 0 |
| 1988 | 5 | 0 |
| 1989 | 7 | 0 |
| 1990 | 10 | 0 |
| 1991 | 9 | 0 |
| 1992 | 10 | 0 |
| 1993 | 11 | 0 |
| 1994 | 15 | 0 |
| 1995 | 7 | 0 |
| 1996 | 19 | 0 |
| 1997 | 18 | 0 |
| 1998 | 33 | 0 |
| 1999 | 23 | 0 |
| 2000 | 25 | 0 |
| 2001 | 14 | 4 |
| 2002 | 15 | 13 |
| 2003 | 16 | 19 |
| 2004 | 12 | 20 |
| 2005 | 7 | 29 |
| 2006 | 21 | 35 |
| 2007 | 20 | 40 |
| 2008 | 12 | 27 |
| 2009 | 19 | 35 |
| 2010 | 29 | 55 |
| 2011 | 34 | 49 |
| 2012 | 16 | 59 |
| 2013 | 41 | 77 |
| 2014 | 36 | 81 |
| 2015 | 59 | 81 |
| 2016 | 73 | 95 |
| 2017 | 82 | 99 |
| 2018 | 61 | 94 |
| 2019 | 78 | 101 |
| 2020 | 70 | 76 |
| 2021 | 69 | 80 |
| 2022 | 61 | 55 |
| 2023 | 45 | 47 |
| 2024 | 37 | 61 |
| 2025 | 37 | 46 |
| 2026 | 22 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Neurosuit system11 Aug 2026US 12,702,887 B2
- Blood vessel training device, method, blood vessel training system7 Jul 2026US 12,673,003 B2Nalux Co., Ltd.
- Glute hamstring developer exercise machine23 Jun 2026US 12,661,545 B2Bulletproof Fitness Equipment Inc
- Exercise for users with limb differences16 Jun 2026US 12,654,058 B1Toyota Mobility Foundation
- Adjustable foot plate for rowing machines16 Jun 2026US 12,654,059 B2Aviron Interactive Inc.
- Controlled Squat Strength-Training Machine3 Sep 2026US 2026/0257101 A1
- Modular physiotherapy and rehabilitation device27 Aug 2026US 2026/0248675 A1
- Walking training apparatus13 Aug 2026US 2026/0232513 A1P & S Robotics Co., Ltd.
- Electronic device for providing various exercise experiences using exercise assistance device, wearable device, and control method for controlling exercise assistance device13 Aug 2026US 2026/0233060 A1Samsung Electronics Co., Ltd.
- Power Shorts for Fitness and Rehabilitation18 Jun 2026US 2026/0166362 A1
Most cited
By later US patents
- Collapsible exercise device211US 5,967,955 ATotal Gym Fitness, LLC · 1999
- Exercise suit with resilient reinforcing189US 5,109,546 A1992
- Methods of therapy or controlled exercise using a jointed brace183US 5,980,435 AKinetecs, Inc. · 1999
- Cyclocentric ergometer178US 6,652,425 B1Biodex Medical Systems, Inc. · 2003
- Programmed pedal platform exercise apparatus171US 5,279,529 A1994