Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9677179 | Pipe connector and method | Petrus Cornelis Kriesels, Mark Shuster, Djurre Hans Zijsling | 2017-06-13 |
| 9617800 | Connector assembly | Djurre Hans Zijsling, Mark Shuster | 2017-04-11 |
| 9366117 | Method and system for lining a section of a wellbore with an expandable tubular element | Feitze Veenstra, Jan Harm Van Der Wal, Antonius Leonardus Maria Wubben, Djurre Hans Zijsling | 2016-06-14 |
| 7395878 | Drilling system and method | Donald G. Reitsma | 2008-07-08 |
| 7350597 | Drilling system and method | Donald G. Reitsma | 2008-04-01 |
| 7318489 | Hydraulic motor arrangement and method of operating a hydraulic motor | Bruno Best | 2008-01-15 |
| 7185719 | Dynamic annular pressure control apparatus and method | — | 2007-03-06 |
| 7134489 | System for controlling the discharge of drilling fluid | — | 2006-11-14 |
| 6904981 | Dynamic annular pressure control apparatus and method | — | 2005-06-14 |