Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9441419 | Optimized soil penetrating machine | — | 2016-09-13 |
| 7273113 | Reversible penetrating machine with a differential air distributing mechanism | — | 2007-09-25 |
| 5467831 | Monotube differential pneumopercussive reversible self-propelled soil penetrating machine with stabilizers | — | 1995-11-21 |
| 5311950 | Differential pneumopercussive reversible self-propelled soil penetrating machine | — | 1994-05-17 |
| 5226487 | Pneumopercussive machine | — | 1993-07-13 |
| 5031706 | Pneumopercussive soil penetrating machine | — | 1991-07-16 |