Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5059643 | Stabilized polyamides | Hans-Josef Buysch, Erich Istel, Franz Zimmermann | 1991-10-22 |
| 4725503 | Pigmented polyamide anchoring wire | Rudolf Braeckeler, Robert McDonald, Richard Buechele | 1988-02-16 |