Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880685 | Process for separating and/or reacting particles | Norbert Wiegart | 1989-11-14 |
| 4837484 | High-power radiator | Baldur Eliasson, Peter Erni, Ulrich Kogelschatz | 1989-06-06 |
| 4813978 | Process for separating particles and apparatus for carrying out the process | Norbert Weigart | 1989-03-21 |