Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4619337 | Electric balance with scale on top | Jurgen Ober, Erich Knothe, Franz-Josef Melcher | 1986-10-28 |
| 4450923 | Electronic weighing scale | Erich Knothe, Franz-Josef Melcher, Jurgen Ober | 1984-05-29 |
| 4450924 | Electronic weighing scale | Eric Knothe, Franz-Josef Melcher, Jurgen Ober | 1984-05-29 |
| 4300647 | Electromagnetic force compensation scale with temperature compensation | Erich Knothe, Franz-Josef Melcher, Jurgen Ober | 1981-11-17 |