Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4363536 | Instrument base for optical devices | Andreas Thaer, Horst Frimmel, Horst Riegel | 1982-12-14 |
| 4361863 | Illuminating device having a curved optical conductor | — | 1982-11-30 |
| 4353618 | Optical arrangement for the reflecting microscopic examination of an object | Andreas Thaer, Francis Bigar | 1982-10-12 |
| 4284327 | Microscope with attachable illuminating devices | Winfried Kraft, Robert Lisfeld, Karl Wieber, Horst Frimmel | 1981-08-18 |
| 4233650 | Brightness control for fiber optical lamps | Horst Frimmel | 1980-11-11 |