Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4434260 | Thermoplastic resin shaping with olefin/maleimide copolymer lubricant | Heinz Beck, Werner Holtvoigt | 1984-02-28 |
| 4192930 | Esterified olefin-maleic anhydride copolymers | Heinz Beck, Karl-Heinz Frassek, Werner Holtvoigt | 1980-03-11 |