Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6080822 | Copolymer for compatibilizing blends | Michael Haubs, Arnold Schneller, Dennis Kappler, Doris Pospiech | 2000-06-27 |
| 5677394 | Melt-processable block copolyesterimide and method for manufacturing it | Doris Pospiech, Manfred Ratzsch, Christer Bergstrom, Mika Harkonen, Heli Alanko +1 more | 1997-10-14 |
| 5369209 | Amorphous polyesterimides which can be processed as thermoplastics | Horst-Tore Land, Michaela Gedan, Manfred Ratzsch | 1994-11-29 |
| 5091494 | Copolyester amides, and method for making | Dirk Leistner, Doris Pospiech, Manfred Ratzsch, Christian Vieth, Michael Stephan | 1992-02-25 |