Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5352831 | Oligomeric cyanoguanidines | Peter Flury, Sameer H. Eldin | 1994-10-04 |
| 5310909 | Photochromic compounds, a process for their preparation, and their use | Evelyn Fischer, Walter Fischer, Jurgen Finter, Kurt Meier | 1994-05-10 |
| 5300380 | Process for the production of relief structures using a negative photoresist based on polyphenols and epoxy compounds or vinyl ethers | Kurt Meier | 1994-04-05 |
| 5296330 | Positive photoresists containing quinone diazide photosensitizer, alkali-soluble resin and tetra(hydroxyphenyl) alkane additive | Reinhard Schulz, Norbert Munzel, Wilhelm Knobloch | 1994-03-22 |