Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10648258 | Sealing and controlling of fluid pressure in an annular fluid passageway in a wellbore related process | Gerardus Godefridus Johannes Van Og, Joop Roodenburg | 2020-05-12 |
| 9121239 | Device for anchoring in a casing in a borehole in the ground | Christian Schulte, Konrad Johannes Bührmann, Gerardus Godefridus Johannes Van Og | 2015-09-01 |
| 8613309 | Pipe handling apparatus and method | Arno van Mourik | 2013-12-24 |
| 6796390 | Method and device for moving a tube in a borehole in the ground | — | 2004-09-28 |
| 6581692 | Making up and breaking out of a tubing string in a well white maintaining continuous circulation | Kasper Koch, Jacob Van Oord | 2003-06-24 |
| 6523611 | Apparatus for completing a subterranean well and method of using same | Bart Christian Van Belle | 2003-02-25 |
| 6435280 | Making and breaking of couplings between pipe sections in a drilling rig | Gustaaf Louis van Wechem | 2002-08-20 |