Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5703186 | Mixed polymers | Horst Borndoerfer, Hellmut Ahne, Siegfried Birkle, Eberhard Kuehn, Rainer Leuschner +2 more | 1997-12-30 |
| 5696218 | Preparation of poly-o-hydroxyamides and poly-o-mercaptoamides | Hellmut Ahne, Roland Gestigkeit | 1997-12-09 |
| 5688631 | Methods for producing polybenzoxazol precursors and corresponding resist solutions | Hellmut Ahne, Eva Rissel | 1997-11-18 |
| 5616667 | Copolymers | Horst Borndoerfer, Hellmut Ahne, Siegfried Birkle, Eberhard Kuehn, Rainer Leuschner +2 more | 1997-04-01 |