Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883740 | Radiation-sensitive mixture for photosensitive coating materials | Reinhold Schwalm, Andreas Boettcher | 1989-11-28 |
| 4822866 | Copolymers having O-nitrocarbinol ester groups and production of semiconductor components | Reinhold Schwalm | 1989-04-18 |
| 4812542 | Copolymers having o-nitrocarbinol ester groups and preparation thereof | Reinhold Schwalm | 1989-03-14 |
| 4808682 | Copolymers having o-nitrocarbinol ester groups, production of two-layer resists, and fabrication of semiconductor components | Reinhold Schwalm | 1989-02-28 |