Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6063549 | Wet-chemical, developable, etch-stable photoresist for UV radiation with a wavelength below 200 nm | Ulrich Schadeli, Manfred Hofmann, Norbert Muenzel | 2000-05-16 |
| 5776657 | Wet-chemical developable, etch-stable photoresist for UV radiation with a wavelength below 200 NM | Ulrich Schaedeli, Manfred Hofmann, Norbert Muenzel | 1998-07-07 |
| 4980458 | Mixed sodium, ammonium and/or calcium salt crystals of laked monoazo disulfonated pyrazolone pigments | Stefan Hari, Andreas Burkhard | 1990-12-25 |
| 4880472 | Organic pigments coated with metal oxides | Philippe Bugnon, Bernhard Medinger, Jean Schaefle | 1989-11-14 |
| 4504404 | Lubricant compositions containing chlorinated organic compounds | Rolf Schumacher | 1985-03-12 |