Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6843131 | Method of detecting discontinuities on elongated workpieces | Alfred Graff | 2005-01-18 |
| 5679898 | Process and device for detecting flaws on stretched workpieces, especially tubes and bars | Heinz Schneider | 1997-10-21 |
| 5050703 | Electrodynamic transducer head | Alfred Graff, Michael Wachter, Wolfgang Bottger | 1991-09-24 |
| 4817431 | Defect detection in cylindrical objects | — | 1989-04-04 |
| 4732040 | Electrodynamically producing ultrasonic waves | Wolfgang Boettger, Willi Weingarten, Heinz Schneider | 1988-03-22 |