Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6889874 | Dosing device for bulk goods | — | 2005-05-10 |
| 4666956 | Biocidal composition and its use in plastic molding compounds | Paul Spielau, Peter Putz | 1987-05-19 |
| 4371654 | Molding compositions based on ester-compatible thermoplastic and/or elastomeric synthetic resins | Paul Spielau, Werner Kuhnel | 1983-02-01 |