Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5091126 | Preparation of expandable granules, and the production of foams therefrom | Heinz Weber, Gerd Ehrmann, Franz-Josef Dietzen, Hans D. Zettler | 1992-02-25 |
| 5084484 | Preparation of foams having high heat-distortion resistance, and foams based on aromatic polyether ketones | Heinz Weber, Wilhelm Nickolaus | 1992-01-28 |
| 4927859 | Expandable polymers in particle form | Heinz Weber, Manfred Walter, Dieter Ballweber, Bertram Ostermayer | 1990-05-22 |