Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5554797 | Tetra (hydroxphenyl) alkanes | Reinhard Schulz, Norbert M unzel, Martin Roth | 1996-09-10 |
| 5436098 | Positive photoresists with enhanced resolution and reduced crystallization containing novel tetra(hydroxyphenyl)alkanes | Reinhard Schulz, Norbert Munzel, Martin Roth | 1995-07-25 |
| 5296330 | Positive photoresists containing quinone diazide photosensitizer, alkali-soluble resin and tetra(hydroxyphenyl) alkane additive | Reinhard Schulz, Norbert Munzel, Martin Roth | 1994-03-22 |