Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7987924 | Automatic control system for connecting a dual-member pipe | Geoff D. Koch | 2011-08-02 |
| 7628226 | Automatic control system for connecting a dual-member pipe | Geoff D. Koch | 2009-12-08 |
| 6295740 | Power-movement measuring tape | — | 2001-10-02 |
| 5684466 | Electrical strike system control for subsurface boring equipment | Donald J. Keating, Joel Edwards, Kelvin P. Self | 1997-11-04 |