Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7278500 | Roller cutter | — | 2007-10-09 |
| 6929077 | Boring head, roller cutter and saddle for a boring head for rotary drilling | — | 2005-08-16 |
| 5944126 | Resilient, non-rotating seal for rock drill | — | 1999-08-31 |
| 5839523 | Methods and apparatus for lubricating a rotary cutter | — | 1998-11-24 |
| 5803195 | System, method and cutterhead for dry full-area drilling | Karl T. Haugen, Gert Lovgren, Roland Kallvik | 1998-09-08 |
| D357485 | Insert for rock drilling bits | Michael Mattsson, Goran Strand | 1995-04-18 |
| D357486 | Insert for rocking drilling bits | Michael Mattsson, Goran Strand | 1995-04-18 |