Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7273093 | Heat exchanger in particular an evaporator for a vehicle air-conditioning unit | Gottfried Durr, Klaus Forster, Wolfgang Seewald | 2007-09-25 |
| 7217673 | Solarization stable borosilicate glass and uses thereof | Karin Naumann, Simone Monika Ritter, Herbert Stappen | 2007-05-15 |
| 7137278 | Process for producing alkali-free aluminosilicate glass | Karin Naumann, Otmar Becker, Ralf Diezel | 2006-11-21 |
| 6992031 | Method for producing aluminosilicate glass | Karin Naumann, 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, Karin Naumann, Ottmar Becker | 2006-01-24 |
| 6938685 | Heat exchanger | Gottfried Duerr, Peter Geskes, Michael Kohl, Andreas Lelster, Kurt Molt +3 more | 2005-09-06 |
| 6851280 | Method of making a halogen lamp and other analogous lamps and objects, and apparatus for the manufacture thereof | Otmar Becker, Karin Naumann | 2005-02-08 |
| 6735237 | Device for producing a glass melt | Klaus-Dieter Duch, Frank Karetta, Siegfried Breitfelder | 2004-05-11 |
| 6373193 | Long life halogen cycle incandescent lamp and glass envelope composition | Richard C. Marlor, Karin Naumann, Ottmar Becker | 2002-04-16 |
| 6074969 | Earth-alkaline aluminoborosilicate glass for lamp bulbs | Karin Naumann | 2000-06-13 |
| 6069100 | Glass for lamb bulbs capable of withstanding high temperatures | Karin Naumann, Otmar Becker | 2000-05-30 |
| 5736476 | Borosilicate glass of high chemical resistance and low viscosity which contains zirconium oxide and lithium oxide | Eckhart Watzke, Andrea Kampfer, Peter Brix | 1998-04-07 |
| 5610108 | Reducing melt borosilicate glass having improved UV transmission properties and water resistance and methods of use | Eckhart Watzke, Thomas Kloss, Peter Brix | 1997-03-11 |
| 5080705 | Method and apparatus for manufacturing profiled glass tubing | Reinhard Mannl | 1992-01-14 |
| 5057136 | Method and apparatus for manufacturing profiled glass tubing | Reinhard Mannl | 1991-10-15 |