Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6841332 | Photoresist compound and method for structuring a photoresist layer | Gertrud Falk, Ernst-Christian Richter, Michael Sebald | 2005-01-11 |
| 5922825 | Preparation of poly-o-hydroxyamides and poly o-mercaptoamides | Recai Sezi, Hellmut Ahne | 1999-07-13 |
| 5883221 | Synthesis of polybenzoxasole and polybenzothiazole precursors | Recai Sezi, Hellmut Ahne, Sueleyman Kocman | 1999-03-16 |
| 5807969 | Preparation of poly-O-hydroxyamides and poly O-mercaptoamides | Recai Sezi, Hellmut Ahne, Roland Gestigkeit | 1998-09-15 |
| 5750711 | Dicarboxylic acid derivatives | Racai Sezi, Hellmut Ahne | 1998-05-12 |
| 5703186 | Mixed polymers | Recai Sezi, Horst Borndoerfer, Hellmut Ahne, Siegfried Birkle, Rainer Leuschner +2 more | 1997-12-30 |
| 5616667 | Copolymers | Recai Sezi, Horst Borndoerfer, Hellmut Ahne, Siegfried Birkle, Rainer Leuschner +2 more | 1997-04-01 |
| 5250375 | Photostructuring process | Michael Sebald, Juergen Beck, Rainer Leuschner, Recai Sezi, Siegfried Birkle +1 more | 1993-10-05 |
| 5194629 | Process for producing N-tertiary butoxycarbonyl-maleinimide | Juergen Beck, Hellmut Ahne, Siegfried Birkle, Rainer Leuschner, Michael Sebald +2 more | 1993-03-16 |
| 5081000 | Photosensitive mixture | Albert Hammerschmidt, Erwin Schmidt, Hellmut Ahne | 1992-01-14 |