Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4299975 | Sulfosuccinate emulsifiers | Adolf Asbeck, Werner Erwied, Rudi Heyden, Manfred Petzold | 1981-11-10 |
| 4250050 | Sulfosuccinate emulsifiers | Adolf Asbeck, Werner Erwied, Rudi Heyden, Manfred Petzold | 1981-02-10 |
| 4183875 | Substituted melamine additives useful in molding compositions based on thermosetting resins | Rudi Heyden, Manfred Jaeckel, Manfred Petzold, Kurt Worschech | 1980-01-15 |