Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8960336 | Rock drill bit | Heinrich Kersten, Joerg Frommeyer, Sven Elmers, Hermann Albers | 2015-02-24 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8960336 | Rock drill bit | Heinrich Kersten, Joerg Frommeyer, Sven Elmers, Hermann Albers | 2015-02-24 |