Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5237897 | Automatic bandmill strain and saw tracking method and apparatus | Ralph Wijesinghe | 1993-08-24 |
| 5176055 | Bandmill with automatic track and strain control system | Ralph Wijesinghe, Joseph G. LaChapelle, Mark Carter | 1993-01-05 |