Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4452551 | Process for stabilizing rock and coal formations by bonding these formations to themselves or other geological formations | Diether Arndt | 1984-06-05 |
| 4389454 | Molded foamed polyurethane part having a lightweight skin and a process for its manufacture | Heinrich Horacek, Matthias Marx | 1983-06-21 |