Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885018 | Method for manufacturing rotationally symmetrical porous solid bodies | Peter Klaus Bachmann, Hans Lydtin, Gerd Romanowski | 1989-12-05 |
| 4857091 | Method of manufacturing optical fibers | Hans Lydtin, Howard J. C. Wilson | 1989-08-15 |
| 4802733 | Fluorine-doped optical fibre and method of manufacturing such fibre | Peter Klaus Bachmann, Dieter Leers, Howard J. C. Wilson | 1989-02-07 |