A61G 1/0237
Having at least one swivelling wheel
Official title: {having at least one swivelling wheel, e.g. castors}
A61G1/0237 (Having at least one swivelling wheel) appears on 350 US grants and 308 published applications in this corpus.
Search patents in A61G- Granted patents
- 350
- Published applications
- 308
- Assignees
- 81
- Inventors
- 461
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 13 | 2 |
| 2002 | 8 | 8 |
| 2003 | 12 | 10 |
| 2004 | 14 | 9 |
| 2005 | 5 | 9 |
| 2006 | 8 | 11 |
| 2007 | 5 | 16 |
| 2008 | 7 | 18 |
| 2009 | 18 | 17 |
| 2010 | 10 | 5 |
| 2011 | 11 | 16 |
| 2012 | 9 | 4 |
| 2013 | 8 | 8 |
| 2014 | 9 | 3 |
| 2015 | 10 | 15 |
| 2016 | 8 | 15 |
| 2017 | 4 | 14 |
| 2018 | 12 | 9 |
| 2019 | 9 | 20 |
| 2020 | 10 | 18 |
| 2021 | 18 | 15 |
| 2022 | 16 | 12 |
| 2023 | 18 | 19 |
| 2024 | 15 | 19 |
| 2025 | 16 | 11 |
| 2026 | 10 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Directional wheel lock assemblies and cots having directional wheel lock assemblies8 Sep 2026US 12,728,049 B2Ferno-Washington, Inc.
- System and method of braking for a patient support apparatus4 Aug 2026US 12,697,256 B2Stryker Corporation
- Chest compression system retainer with tethers for use with a patient transport apparatus5 May 2026US 12,616,624 B2Stryker Corporation
- Ambulance cot and loading and unloading system14 Apr 2026US 12,599,518 B2Stryker Corporation
- Robotic transfer device and related method24 Mar 2026US 12,582,366 B2
- Chest Compression System Retainer With Tethers For Use With A Patient Transport Apparatus27 Aug 2026US 2026/0248670 A1Stryker Corporation
- Ambulance cot and loading and unloading system16 Jul 2026US 2026/0199154 A1Stryker Corporation
- Chest Compression System Retainer With Shoulder Brace For Use With A Patient Transport Apparatus2 Apr 2026US 2026/0090954 A1Stryker Corporation
- Patient handling apparatus with hydraulic control system5 Feb 2026US 2026/0034000 A1Stryker Corporation
- Patient Support System Having A Foot Barrier22 Jan 2026US 2026/0020996 A1Stryker Corporation
Most cited
By later US patents
- Stretcher controls223US 5,806,111 AHill-Rom, Inc. · 1998
- Life support stretcher bed192US 4,584,989 A1986
- Ambulance cot and hydraulic elevating mechanism therefor169US 7,398,571 B2Stryker Corporation · 2008
- Caster and braking system158US 6,321,878 B1Hill-Rom Services, Inc. · 2001
- Carrier with deployable center wheels150US 5,348,326 AHill-Rom, Inc. · 1994