Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6675888 | Method and system for moving equipment into and through an underground well | Hagen Schempf, Steve J. Kimminau, Johannis Josephus Den Boer, John Foreman Stewart | 2004-01-13 |
| 6241028 | Method and system for measuring data in a fluid transportation conduit | Steve J. Kimminau, Hans J. J. den Boer, John Foreman Stewart, Jerry L. Morris, Hagen Schempf | 2001-06-05 |