Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871383 | Method of manufacturing optical fibres | Peter Klaus Bachmann, Hans-Jurgen E. Hagemann, Jacques Warnier | 1989-10-03 |
| 4857091 | Method of manufacturing optical fibers | Peter E. E. Geittner, Hans Lydtin | 1989-08-15 |
| 4802733 | Fluorine-doped optical fibre and method of manufacturing such fibre | Peter Klaus Bachmann, Peter E. E. Geittner, Dieter Leers | 1989-02-07 |