Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4692289 | Method of manufacturing voltage-dependent resistor | Detlev Hennings, Herbert Schreinemacher | 1987-09-08 |
| 4606116 | Non-linear resistor and method of manufacturing the same | Detlev Hennings, Herbert Schreinemacher | 1986-08-19 |
| 4581159 | Voltage-dependent resistor and method of manufacturing same | Detlev Hennings, Herbert Schreinemacher | 1986-04-08 |
| 4551269 | Non-linear resistor and method of manufacturing the same | Detlev Hennings, Herbert Schreinemacher | 1985-11-05 |
| 4533849 | Ceramic bistable deflection element | — | 1985-08-06 |
| 4417227 | Voltage-dependent resistor and method of producing such a resistor | Detlev Hennings, Herbert Schreinemacher | 1983-11-22 |
| 4359892 | Arrangement for measuring surface profiles | Heinrich A. Oepen | 1982-11-23 |