Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4559281 | Coating for a surface subject to exposure to a high-frequency field to prevent interference resulting from secondary electron emission | Heinrich Derfler, Hermann J. Spitzer | 1985-12-17 |
| 4469496 | Means for separating isotopes of hydrogen based on the principle of gas chromatography | Hans Frischmuth, Anton Stimmelmayr, Heinrich Weichselgartner | 1984-09-04 |