Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5177361 | Electron energy filter | Dieter Krahl, Hans-Joachim Pätzold, Johannes Bihr | 1993-01-05 |
| 4812652 | Imaging method and apparatus for electron microscopes | Wilhelm Egle, F. Peter Ottensmeyer | 1989-03-14 |