Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4934817 | Device with detachable test strip holder for optically evaluating a test strip | — | 1990-06-19 |
| 4894552 | Differential-reflectance photometer | Walter Ziegler | 1990-01-16 |
| 4364107 | Method and device for using mass-produced light-emitting diodes at a predetermined luminance | Hanne-Lore Wieczorek, Adolf Triller | 1982-12-14 |
| 4329737 | Light-emitting diode arrangement | Adolf Triller | 1982-05-11 |