Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6250159 | Characterization of objects by means of ultrasonic waves | Peter Kreier | 2001-06-26 |
| 5661814 | Hearing aid apparatus | Pius Gerold Estermann, Bohumir Uvacek | 1997-08-26 |
| 5633863 | Echo canceler | Peter Gysel, Bruno Wenger, Daniel Muller | 1997-05-27 |
| 4425213 | Discrete length strip plater | Gerald C. Laverty, Michael Seyffert | 1984-01-10 |