Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5494616 | Production of fibers by centrifugal spinning | Heinz Voelker, Hans D. Zettler, Heinz Berbner | 1996-02-27 |
| 5322915 | Modified melamine-formaldehyde resins | Juergen Weiser, Wolfgang Reuther, Rolf Fikentscher, Heinz Berbner, Hans D. Zettler +1 more | 1994-06-21 |
| 5162487 | Melamine resin moldings having increased elasticity | Juergen Weiser, Wolfgang Reuther, Gerhard Turznik, Heinz Berbner, Onno Graalmann | 1992-11-10 |
| 5084488 | Melamine resin moldings having increased elasticity | Juergen Weiser, Wolfgang Reuther, Gerhard Turznik, Heinz Berbner, Onno Graalmann | 1992-01-28 |
| 5006173 | Transforming crude copper phthalocyanines into a pigmentary state | Rainer Nachtrab, Rudolf Polster | 1991-04-09 |