Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9370455 | Wheelchair suspension | — | 2016-06-21 |
| 8925943 | Wheelchair suspension | — | 2015-01-06 |
| 8172015 | Wheelchair suspension | — | 2012-05-08 |
| 7472767 | Wheelchair suspension | — | 2009-01-06 |
| 7198284 | Adjustable personal mobility aid | Matthew Cerreto, Edward B. Roth | 2007-04-03 |
| 7055634 | Wheelchair suspension | — | 2006-06-06 |
| 7040429 | Wheelchair suspension | — | 2006-05-09 |
| 6394476 | Wheelchair seat having adjustable telescoping assembly | — | 2002-05-28 |
| 5853059 | Powered wheelchair with adjustable center of gravity and independent suspension | Gerold Goertzen, Neal J. Curran | 1998-12-29 |
| 5575348 | Powered wheelchair with adjustable center of gravity and independent suspension | Gerold Goertzen, Neal J. Curran | 1996-11-19 |