Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6409458 | Low floor vehicle ramp assembly | Alan Cohn, Cleatus A. Lewis | 2002-06-25 |
| 6238168 | Ramp assembly with locking mechanisms | Alan Cohn, Cleatus A. Lewis | 2001-05-29 |
| 6210098 | Low floor vehicle ramp assembly | Alan Cohn, Cleatus A. Lewis | 2001-04-03 |
| 6203265 | Ramp assembly with lifting levers | Alan Cohn, Cleatus A. Lewis | 2001-03-20 |
| 6010298 | Low floor vehicle ramp assembly | Alan Cohn, Cleatus A. Lewis | 2000-01-04 |
| 5299904 | Vehicle lift with contact sensor | Dale Kempf | 1994-04-05 |