Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8029711 | Method for producing a core sand and/or mold sand for foundry purposes | Spyridon Tzintzos | 2011-10-04 |
| 7281570 | Method for the production of a core sand and/or molding sand for casting purposes | Karl Koch | 2007-10-16 |
| 7188660 | Method for producing a molding sand that is in particular recirculated, for foundry purposes | Karl Koch | 2007-03-13 |