| 9526664 |
Anti-tip system for a power wheelchair |
James P. Mulhern, Christopher Grymko |
2016-12-27 |
| 9301894 |
Anti-tip system for a power wheelchair |
James P. Mulhern, Christopher Grymko |
2016-04-05 |
| 8408598 |
Anti-tip system for a power wheelchair |
James P. Mulhern, Christopher Grymko |
2013-04-02 |
| 8181992 |
Anti-tip system for a power wheelchair |
James P. Mulhern, Christopher Grymko |
2012-05-22 |
| 7931300 |
Anti-tip system for a power wheelchair |
James P. Mulhern, Christopher Grymko |
2011-04-26 |
| 7726689 |
Anti-tip system for a power wheelchair |
James P. Mulhern, Christopher Grymko |
2010-06-01 |
| 7413038 |
Anti-tip system for a power wheelchair |
James P. Mulhern, Christopher Grymko |
2008-08-19 |
| 7389835 |
Active anti-tip system for power wheelchairs |
James P. Mulhern, Christopher Grymko |
2008-06-24 |
| 7344155 |
Adjustable anti-tip wheels for power wheelchair |
James P. Mulhern, George Leitner |
2008-03-18 |
| 7316282 |
Anti-tip system for wheelchairs |
James P. Mulhern |
2008-01-08 |
| 7232008 |
Active anti-tip wheels for power wheelchair |
James P. Mulhern |
2007-06-19 |
| 6923278 |
Adjustable anti-tip wheels for power wheelchair |
James P. Mulhern, George Leitner |
2005-08-02 |
| 6776430 |
Stabilizing system for a reclinable wheelchair |
Gerald White, James P. Mulhern |
2004-08-17 |
| 6000758 |
Reclining lift chair |
Walter E. Schaffner, Carl A. Kollar, James P. Mulhern, Stephen J. Antonishak |
1999-12-14 |