Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11891858 | Method and apparatus for alternating between coring and drilling without tripping operations | Alf Erik Berle | 2024-02-06 |
| 11131147 | Core drilling apparatus and method for converting between a core drilling assembly and a full-diameter drilling assembly | Alf Erik Berle, Arne Matzel | 2021-09-28 |
| 9879493 | Intelligent coring system | — | 2018-01-30 |
| 7063174 | Method for reservoir navigation using formation pressure testing measurement while drilling | Roland E. Chemali, Tron B. Helgesen, Volker Krueger, Matthias Meister, Peter Aronstam | 2006-06-20 |
| 6976535 | Method of utilizing flowable devices in wellbores | Peter Aronstam | 2005-12-20 |
| 6745833 | Method of utilizing flowable devices in wellbores | Peter Aronstam | 2004-06-08 |
| 6585045 | Formation testing while drilling apparatus with axially and spirally mounted ports | Jaedong Lee, John M. Michaels, Volker Krueger, Matthias Meister | 2003-07-01 |
| 6581455 | Modified formation testing apparatus with borehole grippers and method of formation testing | Volker Krueger, Matthias Meister, John M. Michaels, Jaedong Lee | 2003-06-24 |
| 6443228 | Method of utilizing flowable devices in wellbores | Peter Aronstam | 2002-09-03 |
| 6427530 | Apparatus and method for formation testing while drilling using combined absolute and differential pressure measurement | Volker Krueger, Matthias Meister | 2002-08-06 |
| 6157893 | Modified formation testing apparatus and method | Don T. Macune | 2000-12-05 |
| 6047239 | Formation testing apparatus and method | Nils Reimers, Don T. Macune | 2000-04-04 |
| 5803186 | Formation isolation and testing apparatus and method | Nils Reimers, Don T. Macune | 1998-09-08 |
| 4583617 | Rescue basket | — | 1986-04-22 |