Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9676643 | Method for producing glasses, glass ceramics and the use of same | Frank-Thomas Lentes, Ulrich Schiffner, Friedrich Siebers, Christian MUELLER, Klaus Schoenberger +1 more | 2017-06-13 |
| 8424342 | Melting and refining in tanks with cooled walls | Werner Kiefer, Hildegard Römer, Frank-Thomas Lentes, Guido Räke, Volker Ohmstede +4 more | 2013-04-23 |
| 8347653 | Method and device for homogenizing glass melt | Christoph Berndhaeuser, Frank-Thomas Lentes, Hans Duerolf, Holger Hunnius | 2013-01-08 |
| 8347652 | Method and device for homogenizing glass melt | Christoph Berndhaeuser, Frank-Thomas Lentes, Hans Duerolf, Holger Hunnius | 2013-01-08 |
| 7490486 | Method for producing borosilicate glasses | Christof Kass, Franz Ott | 2009-02-17 |
| 7217673 | Solarization stable borosilicate glass and uses thereof | Simone Monika Ritter, Franz Ott, Herbert Stappen | 2007-05-15 |
| 7137278 | Process for producing alkali-free aluminosilicate glass | Franz Ott, Otmar Becker, Ralf Diezel | 2006-11-21 |
| 7041612 | Lead-free and arsenic-free special short flint glass | Uwe Kolberg, Frank-Thomas Lentes | 2006-05-09 |
| 6992031 | Method for producing aluminosilicate glass | Franz Ott, Ralf Diezel, Otmar Becker | 2006-01-31 |
| 6989633 | Alkaline-earth aluminosilicate glass, containing CA and BA, suitable for use in lamp bulbs, and a lamp bulb containing same | Christian Kunert, Franz Ott, Ottmar Becker | 2006-01-24 |
| 6851280 | Method of making a halogen lamp and other analogous lamps and objects, and apparatus for the manufacture thereof | Franz Ott, Otmar Becker | 2005-02-08 |
| 6630420 | Glass with high proportion of zirconium-oxide and its uses | Norbert Greulich-Hickmann, Uwe Kolberg, Werner Kiefer, Simone Monika Ritter | 2003-10-07 |
| 6627569 | Glass with high proportion of zirconium-oxide and its uses | Norbert Greulich-Hickmann, Uwe Kolberg, Werner Kiefer | 2003-09-30 |
| 6403507 | Lead-free bismuth-containing silicate glasses and uses thereof | Magdalena Winkler-Trudewig, Ute Woelfel, Christian Kunert | 2002-06-11 |
| 6373193 | Long life halogen cycle incandescent lamp and glass envelope composition | Richard C. Marlor, Franz Ott, Ottmar Becker | 2002-04-16 |
| 6074969 | Earth-alkaline aluminoborosilicate glass for lamp bulbs | Franz Ott | 2000-06-13 |
| 6069100 | Glass for lamb bulbs capable of withstanding high temperatures | Franz Ott, Otmar Becker | 2000-05-30 |