Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10233118 | Device for expansion of sand grain-shaped raw material | Harald Tschernko, Bernhard Neukam, Ernst Erwin Brunnmair | 2019-03-19 |
| 9878945 | Method for expanding raw material in the form of sand grains | Harald Tschernko, Bernhard Neukam, Ernst Erwin Brunnmair | 2018-01-30 |