| 8893338 |
Inflatable cellular mattress with alternating zones of inflated cells |
J. David McCausland, Paul A. Rickman |
2014-11-25 |
| 8739338 |
Inflatable cushion valve and attachment apparatus |
Paul A. Rickman |
2014-06-03 |
| 8011043 |
Molded seat cushion with internal shape matching ischial structures |
Robert H. Graebe |
2011-09-06 |
| 6687936 |
Valve for zoned cellular cushion |
Robert W. Graebe, Robert Klotz, Paul A. Rickman |
2004-02-10 |
| 6623080 |
Cellular cushion vehicle seat system |
— |
2003-09-23 |
| D463701 |
Seat cushion |
Thomas L. Borcherding, Thomas J. Nurdin, David K. Parsons |
2002-10-01 |
| 6095611 |
Modular backrest system for a wheelchair |
Christopher A. Bar |
2000-08-01 |
| D413841 |
Back support pad assembly for a wheelchair |
Christopher A. Bar |
1999-09-14 |
| D413085 |
Back support pad assembly for a wheelchair |
Christopher A. Bar |
1999-08-24 |
| D412685 |
Back support pad assembly for a wheelchair |
Christopher A. Bar |
1999-08-10 |
| D408767 |
Back support for a wheelchair |
Christopher A. Bar |
1999-04-27 |
| D407353 |
Back support for a wheelchair |
Christopher A. Bar |
1999-03-30 |