Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6464022 | Mobile horizontal directional boring apparatus and method for use in boring from existing utility manholes | Gerard R. O'Brien, Gregory Moore | 2002-10-15 |
| 4609336 | Apparatus and method for extrusion | James F. Stevenson, Thomas E. Codispoti, Richard M. Griffith | 1986-09-02 |