Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5049175 | Method of manufacturing a glass body having a non-uniform refractive index | Karlheinz Rau, Hans-Ulrich Bonewitz | 1991-09-17 |
| 4676814 | Method for the continuous building of a hollow cylindrical soot body having no internal support | Hans-Ulrich Bonewitz, Uwe Christiansen, Karl-Friedrich Klein, Albert Muhlich, Karlheinz Rau +4 more | 1987-06-30 |
| 4532430 | Fault detection apparatus for material webs | Klaus Ostertag | 1985-07-30 |
| 4511803 | Fault detection apparatus for material webs | Klaus Ostertag | 1985-04-16 |
| 4458979 | Light collecting arrangement in combination with a light scanning arrangement for inspecting a web of material | — | 1984-07-10 |
| 4450359 | Fault detection apparatus for material webs | Klaus Ostertag | 1984-05-22 |
| 4431309 | Monitoring apparatus | Erwin Sick, Siegfried Mankel | 1984-02-14 |
| 4336997 | Change of distance measuring apparatus | Viktor Baumgartner | 1982-06-29 |