A61G 1/0231
Having only fixed wheels
Official title: {having only fixed wheels}
A61G1/0231 (Having only fixed wheels) appears on 66 US grants and 48 published applications in this corpus.
Search patents in A61G- Granted patents
- 66
- Published applications
- 48
- Assignees
- 22
- Inventors
- 78
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 2 |
| 2004 | 3 | 5 |
| 2005 | 1 | 1 |
| 2006 | 3 | 3 |
| 2007 | 0 | 5 |
| 2008 | 4 | 2 |
| 2009 | 6 | 5 |
| 2010 | 4 | 3 |
| 2011 | 0 | 2 |
| 2012 | 4 | 1 |
| 2013 | 3 | 2 |
| 2014 | 3 | 2 |
| 2015 | 1 | 1 |
| 2016 | 1 | 2 |
| 2017 | 0 | 2 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 4 | 3 |
| 2022 | 2 | 0 |
| 2023 | 1 | 4 |
| 2024 | 2 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method of braking for a patient support apparatus4 Aug 2026US 12,697,256 B2Stryker Corporation
- Medical backboard/stretcher device25 Mar 2025US 12,257,190 B2
- System and method of braking for a patient support apparatus23 Apr 2024US 11,963,910 B2Stryker Corporation
- Rescue litter12 Mar 2024US 11,925,583 B2
- Rapid evacuation sled for patients and victims5 Sep 2023US 11,744,749 B2
- System and method of braking for a patient support apparatus25 Jul 2024US 2024/0245563 A1Stryker Corporation
- Space explorer rescue system5 Oct 2023US 2023/0310234 A1Hamilton Sundstrand Corporation
- Rescue Litter6 Apr 2023US 2023/0103689 A1Combat Bound LLC
- Apparatus for victim extrication, transport, and method of use6 Apr 2023US 2023/0109197 A1Rfx, LLC
- System and method of braking for a patient support apparatus26 Jan 2023US 2023/0025253 A1Stryker Corporation
Most cited
By later US patents
- Stretcher100US 5,179,746 A1993
- Emergency cot with spring-biased retractable wheel carriage91US 4,097,941 A1978
- Spine board77US 4,369,982 A1983
- Cart transportable mobile medical critical care point of need field installation units74US 8,505,959 B2Valiant Rock LLC · 2013
- Personnel emergency carrier vehicle66US 4,646,860 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 1987