Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4676814 | Method for the continuous building of a hollow cylindrical soot body having no internal support | Dieter Ross, Hans-Ulrich Bonewitz, Uwe Christiansen, Karl-Friedrich Klein, Karlheinz Rau +4 more | 1987-06-30 |
| 4392715 | Optical fiber | Hans-Ulrich Bonewitz, Karlheinz Rau | 1983-07-12 |
| RE30883 | Method of producing synthetic quartz glass | Karlheinz Rau, Fritz Simmat, Norbert Treber | 1982-03-16 |
| 4235615 | Method for the production of semiproduct for the production of light conducting fibers | Karlheinz Rau, Fritz Simmat, Norbert Treber | 1980-11-25 |