Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12252439 | Tube-drawable glass, method for the production and use | Malte Grimm, Ralf Biertümpfel | 2025-03-18 |
| 12157696 | Method for heating molten glass and glass article | Josef Rasp, Michael Hahn, Stefan Knoche | 2024-12-03 |
| 11845686 | Apparatus for forming glass tubes, a heating chamber and a process for the manufacture of an apparatus for forming glass tubes | Markus Ollig, Arne Riecke, Volker Trinks, Ulrich Lange, Sebastian Stark +4 more | 2023-12-19 |
| 11780765 | Prestress by use of a gradient material | Markus Ollig, Arne Riecke, Ulrich Fotheringham | 2023-10-10 |
| 11702360 | Borosilicate glass article with low boron content | Malte Grimm, Christof Kass | 2023-07-18 |
| 11427497 | Toughenable glass with high hydrolytic resistance and reduced color tinge | Malte Grimm | 2022-08-30 |
| 10703670 | Process for producing alkali metal-rich aluminosilicate glasses, alkali metal-rich aluminosilicate glasses and use thereof | Christof Kass | 2020-07-07 |
| 10315948 | Pharmaceutical packaging comprising a chemically resistant glass | Michael Schwall, Christof Kass, Stephan Tratzky, Peter Nass | 2019-06-11 |
| 9919950 | Low-boron zirconium-free neutral glass having an optimized alkali metal ratio | Christof Kass, Stephan Tratzky, Reinhard Mannl | 2018-03-20 |
| 9643882 | Borosilicate glass having improved hydrolytic resistance for preferred use in the pharmaceutical sector | Stephan Tratzky, Christof Kass, Peter Nass | 2017-05-09 |
| 8726694 | Method and apparatus for manufacturing glass tubes having a predetermined inner profile, preferably for continuously manufacturing such glass tubes | Michael J. Ziegler, Erhard Zemsch | 2014-05-20 |
| 7530238 | Heating apparatus with electrode for the conductive heating of melts | Guido Raeke, Volker Ohmstede, Günter Weidmann, Frank-Thomas Lentes, Thomas Stelle +5 more | 2009-05-12 |
| 7231788 | Method and device for refining a glass melt using negative pressure | Frank Karetta, Joerg Witte, Klaus-Dieter Duch, Dirk Gohlke, Wolfgang Muench +2 more | 2007-06-19 |
| 7040122 | Process for production of molten glass | Stefan Schmitt, Rule Kirchhoff, Wilfried Linz, Norbert Osterhage, Gerhard Lautenschlager +4 more | 2006-05-09 |
| 6871514 | Method of making glass, a method and device for the control and setting of the redox state of redox fining agents in a glass melt | Wolfgang Muschik, Hildegard Römer, Paul Kissl, Johann Collignon, Reinhard Zintl | 2005-03-29 |