Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11952302 | Process for the preparation of fluorinated quartz glass | Stefan Ochs, Martin Trommer, Andreas Langner, Sascha Pihan, Kay Schuster +1 more | 2024-04-09 |
| 11884571 | Alternative fluorinating agents for the production of fluorinated quartz glass | Stefan Ochs, Martin Trommer | 2024-01-30 |
| 11339076 | Preparation of carbon-doped silicon dioxide granulate as an intermediate in the preparation of quartz glass | Matthias Otter, Mirko Wittrin | 2022-05-24 |
| 10851008 | Method for producing a component of rare earth metal-doped quartz glass | Walter Lehmann, Mario Such, Andreas Langner, Gerhard Schötz | 2020-12-01 |
| 10676388 | Glass fibers and pre-forms made of homogeneous quartz glass | Michael Hünermann, Achim Hofmann, Heinz Fabian, Matthias Otter | 2020-06-09 |
| 10336645 | Rare earth metal-doped quartz glass and method for producing the same | Hardy Baierl, Stephan Grimm, Kay Schuster, Jan Dellith, Andreas Langner +2 more | 2019-07-02 |
| 10287705 | Pulling a semiconductor single crystal according to the Czochralski method and silica glass crucible suitable therefor | Michael Hünermann, Walter Lehmann | 2019-05-14 |
| 10029938 | Method for producing synthetic quartz glass of SiO2 granulate and SiO2 granulate suited therefor | Achim Hofmann, Matthias Otter, Bodo Kühn | 2018-07-24 |
| 9856576 | Pulling a semiconductor single crystal according to the Czochralski method | Michael Hünermann, Walter Lehmann | 2018-01-02 |
| 9580348 | Method for producing synthetic quartz glass granules | Walter Lehmann, Achim Hofmann, Martin Arndt | 2017-02-28 |
| 9409810 | Method for producing synthetic quartz glass granules | Walter Lehmann | 2016-08-09 |
| 9003832 | Method of making a silica crucible in a controlled atmosphere | Katsuhiko Kemmochi, Robert Joseph Coolich, Walter Lehmann | 2015-04-14 |
| 8789391 | Method and apparatus for producing a crucible of quartz glass | Walter Lehmann, Hilmar Laudahn | 2014-07-29 |
| 8557171 | Method for producing doped quartz glass | Andreas Langner, Gerhard Schoetz, Mario Such, Johannes Kirchhof, Stephan Grimm +1 more | 2013-10-15 |
| 8387413 | Method for producing a component with a layer of transparent quartz glass | Walter Lehmann | 2013-03-05 |
| 8347650 | Method of producing a quartz glass crucible | Walter Lehmann, Achim Hofmann | 2013-01-08 |
| 4516872 | Apparatus for fastening electric structural parts into the connecting head of electrical thermometers | Kurt Eiermann | 1985-05-14 |