Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683553 | Preparation of 3-chlorophthalic anhydride | Karl Baur, Erwin Brunner | 1997-11-04 |
| 5616784 | Thermal cleavage of carbamic esters | Hans Volkmar Schwarz, Andreas Otterbach, Otto Mattner, Franz Merger, Wolfgang Schwarz +2 more | 1997-04-01 |