Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6381987 | Process for making opaque quartz glass and opaque component made according to the process | Johann Leist, Heinz Fabian, Rolf Göbel, Bruno Uebbing, Erich Rosin | 2002-05-07 |
| 6380110 | Process for making opaque quartz, for carrying out the process suitable SiO2 granulate, and component of opaque quartz glass | Heinz Fabian, Udo Gertig, Johann Leist, Rolf Göbel | 2002-04-30 |
| 6360563 | Process for the manufacture of quartz glass granulate | Rolf Gerhardt, Rainer Köppler, Werner Ponto | 2002-03-26 |