Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4980768 | Circuit arrangement for clamping black level reference signals contained in a video signal sequence | Richard Stehle, Dietmar Dowe | 1990-12-25 |
| 4290941 | Stabilization systems from triarylphosphites and phenols | Horst Zinke, Helmut Linhart | 1981-09-22 |
| 4187212 | Stabilization systems from triarylphosphites and phenols | Horst Zinke, Helmut Linhart | 1980-02-05 |