Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6957698 | Downhole activatable annular seal assembly | Volker Krueger, Sven Krueger | 2005-10-25 |
| 6907944 | Apparatus and method for minimizing wear and wear related measurement error in a logging-while-drilling tool | Matthew Sale, Cornelis Huiszoon, Phillip Lawrence Kurkoski, Volker Krueger | 2005-06-21 |
| 6543540 | Method and apparatus for downhole production zone | Rune Woie | 2003-04-08 |