Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4788253 | Thermoplastic molding material | Juergen Hambrecht, Burghard Schmitt, Johann Swoboda, Georg Wassmuth, Rudolf Stephan | 1988-11-29 |
| 4634734 | Thermoplastic molding material | Juergen Hambrecht, Burghard Schmitt, Johann Swoboda, Georg Wassmuth, Rudolf Stephan | 1987-01-06 |
| 4442263 | Thermoplastic molding materials | Franz Brandstetter, Juergen Hambrecht, Rudolf Stephan, Heinz-Juergen Overhoff, Josef Schwaab +2 more | 1984-04-10 |
| 4224419 | Weathering-resistant, high-impact, easily colored thermoplastic compositions | Johann Swoboda, Gerhard Lindenschmidt | 1980-09-23 |