Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11952303 | Increase in silicon content in the preparation of quartz glass | Marcus Constantin Göbel, Boris Gromann, Gerrit Scheich | 2024-04-09 |
| 11708290 | Preparation of a quartz glass body in a multi-chamber oven | Matthias Otter, Walter Lehmann, Michael Hünermann, Nils Christian Nielsen, Boris Gromann +2 more | 2023-07-25 |
| 11492282 | Preparation of quartz glass bodies with dew point monitoring in the melting oven | Boris Gromann, Matthias Söhn | 2022-11-08 |
| 11299417 | Preparation of a quartz glass body in a melting crucible of refractory metal | Matthias Otter, Walter Lehmann, Michael Hünermann, Nils Christian Nielsen, Boris Gromann +1 more | 2022-04-12 |
| 10730780 | Preparation of a quartz glass body in a multi-chamber oven | Matthias Otter, Walter Lehmann, Michael Hünermann, Nils Christian Nielsen, Boris Gromann +2 more | 2020-08-04 |
| 10618833 | Preparation of a synthetic quartz glass grain | Martin Arndt, Matthias Otter, Walter Lehmann, Michael Hünermann, Nils Christian Nielsen +2 more | 2020-04-14 |
| 10315947 | Method for producing a tube of glass | Boris Gromann | 2019-06-11 |
| 9938635 | Method for producing a component, particularly for use in a crucible pulling method for quartz glass | Boris Gromann, Christian Schenk | 2018-04-10 |
| 9725352 | Method for producing a tube of glass | Boris Gromann | 2017-08-08 |
| 8613207 | Method and apparatus for producing a quartz glass cylinder | Helmut Leber, Rainer Berg | 2013-12-24 |
| 7955715 | Method for coating a component for use in a crucible drawing method for quartz glass, and coated component obtained according to the method | Martin Trommer, Rainer Berg, Helmut Leber, Joerg Becker | 2011-06-07 |
| 5026413 | Process for manufacturing quartz glass pipes having a high content of silica with only minor diameter deviations | Helmut Lebert | 1991-06-25 |
| 4923497 | Method for the continuous production of a tube or rod of vitreous fused silica | Helmut Leber | 1990-05-08 |