Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847460 | Apparatus for injecting microwave energy by means of an open microwave guide | Jorg Kieser, Gonde Dittmer, Michael Sellschopp | 1989-07-11 |
| 4838628 | Process and apparatus for production of an optical element | Werner Lobsiger | 1989-06-13 |
| 4798960 | Device for the treatment of substances by UV radiation | Heinz Keller, Martin Lehner, Reinhard Born | 1989-01-17 |