Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5173638 | High-power radiator | Baldur Eliasson, Michael Hirth, Ulrich Kogelschatz | 1992-12-22 |
| 4837484 | High-power radiator | Baldur Eliasson, Michael Hirth, Ulrich Kogelschatz | 1989-06-06 |
| 4790980 | Device for the generation of ozone and a process for its operation | Gerard Kirsch | 1988-12-13 |
| 4461744 | Apparatus for generating ozone by an electric discharge | Ulrich Kogelschatz, Sigfrid Strassler, Hans-Jurg Wiesmann | 1984-07-24 |