Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4830514 | Temperature measuring arrangement | Dieter Begehr, Gerd Keitel | 1989-05-16 |
| 4462019 | Photosensitive semiconductor resistor | Helmut Ewaldt, Gerhard Raabe, Heinz Sauermann | 1984-07-24 |