Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7454949 | Gas sensor and method for production thereof | Helmut Weyl, Siegfried Nees, Bernhard Wild, Rainer Maier, Michael Liebler +3 more | 2008-11-25 |
| 7224110 | Starting element having ceramic component electrostatically coated with a dry glaze | Eckhardt Kuglin, Michael Hausser, Herbert Triptrap | 2007-05-29 |
| 7128630 | Method for manufacturing a spark plug with glaze coating | Rudolf Pollner | 2006-10-31 |
| 6922007 | Spark plug with glaze coating | Rudolf Pollner | 2005-07-26 |
| 6758082 | Sealing system for a gas sensor and a method for manufacturing the sealing system | Helmut Weyl, Siegfried Nees, Bernhard Wild, Thomas Egner, Peter Dettling | 2004-07-06 |
| 6699807 | Glass ceramic material, method for producing the same and spark plug containing such a glass ceramic material | Rudolf Pollner, Imke Koengeter, Ulrich Eisele | 2004-03-02 |
| 6693053 | Glass and glass powder mixture and use thereof for the production of a glass ceramic | Rudolf Pollner, Ulrich Eisele, Peter Wange | 2004-02-17 |
| 6636142 | Sensor element, in particular a temperature sensor | Gert Lindemann, Friederike Lindner, Thomas Brinz, Ulrich Eisele | 2003-10-21 |
| 6408680 | Sensor and method for the manufacture | Karl-Hermann Friese, Helmut Weyl, Hans-Martin Wiedenmann | 2002-06-25 |
| 6347543 | Measuring sensor and method for its fabrication | Helmut Weyl, Hans-Martin Wiedenmann, Karl-Hermann Friese | 2002-02-19 |
| 6164120 | Detector and method for the production thereof | Karl-Hermann Friese, Helmut Weyl, Hans-Martin Wiedenmann | 2000-12-26 |
| 5773894 | Insulation layer system for the electrical isolation circuits | Karl-Hermann Friese, Werner Gruenwald, Claudio De La Prieta | 1998-06-30 |
| 5030602 | Stable ceramic consisting of aluminum oxide | Thomas Frey, Karl-Hermann Friese | 1991-07-09 |
| 4418661 | Glow plug, particularly for diesel engine | Friedrich Esper, Thomas Frey, Gerhard Holfelder, Gunther Knoll | 1983-12-06 |
| 4282080 | Electrochemical sensor, particularly for oxygen determination in combustion gases | Klaus Muller, Ernst Linder, Helmut Mauer, Karl-Hermann Friese, Franz Rieger | 1981-08-04 |
| 4221650 | Solid electrolyte oxygen sensors | Karl-Hermann Friese, Friedrich Esper | 1980-09-09 |