Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4473404 | Shaped articles made from expanded minerals | Peter Eckardt | 1984-09-25 |
| 4391644 | Shaped articles made from expanded minerals | Peter Eckardt | 1983-07-05 |
| 4371399 | Water-repellent gypsum mortar | Adolf May, August Gerl | 1983-02-01 |
| 4344797 | Shaped articles made from expanded minerals | — | 1982-08-17 |
| 4330341 | Highly concentrated filler slurries | Adolf May | 1982-05-18 |