Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4525379 | Method of manufacturing an electrode for a high-pressure gas discharge lamp and electrode for such a lamp | Horst Hubner, Hans Lydtin, Thomas Zaengel | 1985-06-25 |
| RE30635 | Method of producing internally coated glass tubes for the drawing of fibre optic light conductors | Dieter Kuppers, Hans Lydtin | 1981-06-02 |