Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7472438 | Bariatric transport with improved maneuverability | DuWayne E. Karmer, Jr., Timothy F. Dunfee, Brian W. Mellies | 2009-01-06 |
| 7302722 | Bariatric transport with improved maneuverability | DuWayne E. Karmer, Jr., Timothy F. Dunfee, Brian W. Mellies | 2007-12-04 |
| 6290011 | Front wheel/rear wheel drive convertible wheelchair | John T. Langaker, DuWayne E. Kramer, Jr., Jerry L. Traylor | 2001-09-18 |
| 6220382 | Powered wheelchair with separating frame | DuWayne E. Kramer, Jr., Jerry L. Traylor | 2001-04-24 |
| 5816614 | Tiller assembly for personal mobility vehicles | DuWayne E. Kramer, Jr., Jerry L. Traylor, James C. Hile | 1998-10-06 |