Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4345976 | Process for separating mixtures of substances of low volatility | Siegfried Peter, Rolf Riha | 1982-08-24 |
| 4322445 | Process for decaffeinating coffee | Siegfried Peter | 1982-03-30 |