Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12352152 | Horizontal directional drilling system and method | Hans Kelpe | 2025-07-08 |
| 11927090 | Horizontal directional drilling system and method | Hans Kelpe | 2024-03-12 |
| 11473418 | Horizontal directional drilling system and method | Hans Kelpe | 2022-10-18 |
| 10082561 | Symbiotic radar and communication system | Michael Raymond Inggs, Amit Mishra | 2018-09-25 |
| 9348020 | Offset frequency homodyne ground penetrating radar | Kenneth J. Ryerson, Walter Rothe | 2016-05-24 |
| 7013991 | Obstacle detection system for underground operations | Michael Raymond Inggs, Leendert Johannes Du Toit, Kirankumar M. Kothari, David R. Hanson | 2006-03-21 |