Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4528385 | Method of preparing phthalide | Wilhelm Vogt | 1985-07-09 |
| 4400533 | Method of preparing d,l-phenylalanine | Klaus Schrage | 1983-08-23 |
| 4211711 | Method of preparing phthalide | Wilhelm Vogt | 1980-07-08 |