Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5529437 | Guidance system and method for keeping a tunnel boring machine continuously on a plan line | Mark Filipowski, Steven R. Wardwell | 1996-06-25 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5529437 | Guidance system and method for keeping a tunnel boring machine continuously on a plan line | Mark Filipowski, Steven R. Wardwell | 1996-06-25 |