Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5705744 | Vehicle brake system checking method | Franz Brugger, Bernd Knoff, Albrecht Eckl, Hans-Georg Riedel | 1998-01-06 |
| 4538467 | Method and apparatus for measuring the strength of hardened concrete | — | 1985-09-03 |
| 4483641 | Waste disposal landfill | — | 1984-11-20 |
| 4425801 | Device and procedure for measuring in situ strength of concrete and the like | — | 1984-01-17 |