Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7455484 | Cutting or breaking tool as well as cutting insert for the latter | Heinrich Bauschulte, Marco Schumann, Martina Stuckardt, Ernst Heiderich, Reinhold Walter | 2008-11-25 |
| 6354771 | Cutting or breaking tool as well as cutting insert for the latter | Heinrich Bauschulte, Marco Schumann, Martina Stuckardt, Ernst Heiderich, Reinhold Walter | 2002-03-12 |
| 6186597 | Pick system for mining ploughs, in particular coal ploughs | Detlef Hahn, Peter Wollenhaupt, Ernst Heiderich, Georg Marker, Peter Richter +1 more | 2001-02-13 |
| 6183170 | Cylindrical cutting device | Martina Stuckardt, Ernst Heiderich, Reinhold Walter | 2001-02-06 |