A61G 1/0268
Having deployable or retractable wheels
Official title: {having deployable or retractable wheels}
A61G1/0268 (Having deployable or retractable wheels) appears on 120 US grants and 110 published applications in this corpus.
Search patents in A61G- Granted patents
- 120
- Published applications
- 110
- Assignees
- 28
- Inventors
- 160
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 9 | 2 |
| 2002 | 5 | 4 |
| 2003 | 9 | 7 |
| 2004 | 9 | 5 |
| 2005 | 2 | 6 |
| 2006 | 4 | 2 |
| 2007 | 3 | 7 |
| 2008 | 2 | 5 |
| 2009 | 4 | 4 |
| 2010 | 4 | 2 |
| 2011 | 3 | 5 |
| 2012 | 2 | 2 |
| 2013 | 3 | 2 |
| 2014 | 5 | 3 |
| 2015 | 2 | 3 |
| 2016 | 3 | 7 |
| 2017 | 1 | 2 |
| 2018 | 4 | 4 |
| 2019 | 3 | 7 |
| 2020 | 5 | 6 |
| 2021 | 4 | 5 |
| 2022 | 7 | 4 |
| 2023 | 8 | 7 |
| 2024 | 5 | 6 |
| 2025 | 4 | 3 |
By publication year. Applications have been published since 2001.
Recent patents
- Patient transport apparatus with controlled auxiliary wheel speed21 Oct 2025US 12,447,083 B2Stryker Corporation
- Patient support with energy transfer12 Aug 2025US 12,383,450 B2Stryker Corporation
- Patient transport apparatus with controlled drive member deployment8 Apr 2025US 12,268,638 B2Stryker Corporation
- Patient transport apparatus having powered drive system utilizing dual mode user input control4 Mar 2025US 12,239,582 B2Stryker Corporation
- Patient transport apparatus with auxiliary wheel control systems31 Dec 2024US 12,178,757 B2Stryker Corporation
- Patient support with energy transfer30 Oct 2025US 2025/0332046 A1Stryker Corporation
- Patient Transport Apparatus Having Powered Drive System Utilizing Dual Mode User Input Control5 Jun 2025US 2025/0177220 A1Stryker Corporation
- Patient Transport Apparatus With Auxiliary Wheel Control Systems13 Mar 2025US 2025/0082521 A1Stryker Corporation
- Patient Support Apparatus With Multiple Driving Modes29 Aug 2024US 2024/0285454 A1Stryker Corporation
- Patient Transport Apparatus With Stuck Throttle Monitoring25 Jul 2024US 2024/0245562 A1Stryker Corporation
Most cited
By later US patents
- Stretcher controls223US 5,806,111 AHill-Rom, Inc. · 1998
- Carrier with deployable center wheels150US 5,348,326 AHill-Rom, Inc. · 1994
- Powdered maneuverable hospital cart118US 5,083,625 A1992
- Wheeled carriage having auxiliary wheel spaced from center of gravity of wheeled base and cam apparatus controlling deployment of auxiliary wheel and deployable side rails for the wheeled carriage111US 6,256,812 B1Stryker Corporation · 2001
- Stretcher center wheel mechanism100US 5,987,671 AHill-Rom, Inc. · 1999