Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8783069 | Process for producing a quartz glass cylinder and also support for carrying out the process | Anke Schuster, Rene Sowa, Martin Trommer | 2014-07-22 |
| 8590344 | Method for the production of a cylinder made from quartz glass using a retaining device, and retaining device | Thomas Krause, Steffen Zwarg, Rene Sowa | 2013-11-26 |
| 8484997 | Method for producing a cylinder of quartz glass using a holding device and appropriate holding device for performing the method | Frank Hoff, Michael Muschler, Sven Schmidt, Steffen Zwarg, Hans-Georg Fritsche | 2013-07-16 |
| 8393179 | Method for producing a semifinished product from synthetic quartz glass | Sven Schmidt, Andreas Helm, Juergen Roeper | 2013-03-12 |
| 6321573 | Process and apparatus for manufacturing a porous SiO2 preform | Hans-Georg Fritsche, Frank Neubauer, Hartwig Schaper, Jurgen Roper | 2001-11-27 |