A61G 5/1021
Engaging specific brake elements
Official title: {engaging specific brake elements}
A61G5/1021 (Engaging specific brake elements) appears on 104 US grants and 99 published applications in this corpus.
Search patents in A61G- Granted patents
- 104
- Published applications
- 99
- Assignees
- 48
- Inventors
- 219
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 5 | 1 |
| 2003 | 4 | 4 |
| 2004 | 3 | 5 |
| 2005 | 3 | 4 |
| 2006 | 2 | 7 |
| 2007 | 5 | 6 |
| 2008 | 1 | 3 |
| 2009 | 2 | 2 |
| 2010 | 0 | 6 |
| 2011 | 1 | 2 |
| 2012 | 3 | 0 |
| 2013 | 4 | 2 |
| 2014 | 2 | 10 |
| 2015 | 5 | 5 |
| 2016 | 6 | 3 |
| 2017 | 5 | 4 |
| 2018 | 4 | 5 |
| 2019 | 3 | 5 |
| 2020 | 6 | 3 |
| 2021 | 2 | 6 |
| 2022 | 1 | 3 |
| 2023 | 4 | 3 |
| 2024 | 5 | 4 |
| 2025 | 2 | 0 |
| 2026 | 1 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Mobility systems and methods24 Mar 2026US 12,582,571 B2Altimate Medical, Inc.
- System to adjust drive operation and performance in response to detection of a front add-on for a wheelchair23 Dec 2025US 12,502,320 B2Permobil AB
- Wheelchair with emergency brake system4 Nov 2025US 12,458,548 B1Prince Mohammad Bin Fahd University
- Pneumatic powered mobility control systems23 Jul 2024US 12,042,444 B2The United States Government as represented by the Department of Veterans Affairs
- Power transmission mechanism4 Jun 2024US 11,998,496 B2National Institute of Advanced Industrial Science and Technology
- Mobility systems and methods25 Jun 2026US 2026/0174617 A1Altimate Medical, Inc.
- Hub Locking System for Wheelchairs18 Jun 2026US 2026/0165892 A1
- A wheel assembly for a manual wheelchair11 Jun 2026US 2026/0157897 A1
- System to adjust drive operation and performance in response to detection of a front add-on for a wheelchair23 Apr 2026US 2026/0108403 A1Permobil AB
- Wheelchair wheel system26 Mar 2026US 2026/0083606 A1
Most cited
By later US patents
- Electrically powered wheel-chair for indoor and outdoor use157US 3,952,822 AStiftelsen Teknisk Hjalp at Handikappade Permobilstiftelsen · 1976
- Electric control for wheelchair drive unit98US 5,125,468 A1992
- Hand operated wheel-chair88US 3,953,054 APermobilstiftelsen · 1976
- Wheelchair parking brake67US 6,341,671 B12002
- Power operated chair63US 4,475,613 A1984