Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5571961 | Wheel-load sensor with piezo-electric pickup and method of manufacturing such a sensor | Joe Cal | 1996-11-05 |
| 5020236 | Method of measuring the distance between the axles or wheels of a vehicle, and device for doing so | Harald Kauer, Knud Overlach, Rolf Edelmann | 1991-06-04 |
| 4616723 | Wheel load indicator | Ludwig Pietzsch, Knud Overlach | 1986-10-14 |