Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6975244 | Oscillating shear valve for mud pulse telemetry and associated methods of use | Volker Peters, Cedric Rouatbi, Heiko Eggers | 2005-12-13 |
| 6898150 | Hydraulically balanced reciprocating pulser valve for mud pulse telemetry | Volker Peters, Cedric Rouatbi | 2005-05-24 |
| 6872025 | Toggle retainer for toggle connections | Frank Fischer, Gerhard Merten, Ingo Pruss, Siegfried Schmidt, Jorg Wirtz | 2005-03-29 |