Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4274910 | Evaporator for concentrating mineral acid, particularly sulphuric acid | Hansruedi Forter, Hans Kuhnlein, Hans R. Kung, Joachim Maas, Karl-Heinz Schultz | 1981-06-23 |