Issued Patents All Time
Showing 1–25 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10670855 | Method and apparatus for imaging the inner contour of a tube | André Witzmann | 2020-06-02 |
| 7972489 | Sensor element | Roland Stahl, Berndt Cramer, Detlef Heimann, Thomas Wahl, Lothar Diehl +3 more | 2011-07-05 |
| 7361620 | Catalytically active layer | Frank Stanglmeier, Karl-Hermann Friese | 2008-04-22 |
| 7083710 | Gas sensor, in particular a lambda sensor | Heiner Scheer, Josef Hickl, Thomas Wahl, Gerhard Schneider, Harald Neumann +3 more | 2006-08-01 |
| 6849238 | Measuring sensor for gases | Helmut Weyl | 2005-02-01 |
| 6613206 | Gas sensor | Helmut Weyl, Theodor Graser, Karl-Heinz Effenberger, Clemens Simon, Anton Hans | 2003-09-02 |
| 6408680 | Sensor and method for the manufacture | Karl-Hermann Friese, Heinz Geier, Helmut Weyl | 2002-06-25 |
| 6350357 | Sensor element | Harald Neumann, Karl-Heinz Heussner | 2002-02-26 |
| 6347543 | Measuring sensor and method for its fabrication | Heinz Geier, Helmut Weyl, Karl-Hermann Friese | 2002-02-19 |
| 6342140 | Measurement device | Helmut Weyl, Bernhard Wild | 2002-01-29 |
| 6164120 | Detector and method for the production thereof | Karl-Hermann Friese, Heinz Geier, Helmut Weyl | 2000-12-26 |
| 6150607 | Cable bushing for connecting at least one cable of a gas sensor | Helmut Weyl | 2000-11-21 |
| 6096181 | Sealing element for a sensor | Karl-Hermann Friese, Helmut Weyl, Anton Hans | 2000-08-01 |
| 5846391 | Seal for a sensor element of a gas sensor | Karl-Hermann Friese, Helmut Weyl, Anton Hans | 1998-12-08 |
| 5795454 | Seal for a sensor element of a gas sensor | Karl-Hermann Friese, Helmut Weyl, Romuald Fries, Anton Hans | 1998-08-18 |
| 5698267 | Method for fabricating high-activity electrodes for exhaust gas sensors | Karl-Hermann Friese, Frank Stanglmeier | 1997-12-16 |
| 5670032 | Electro-chemical measuring sensor with a potential-free sensor element and method for producing it | Karl-Hermann Friese, Helmut Weyl, Siegfried Nees | 1997-09-23 |
| 5662786 | Electrochemical sensor | Karl-Hermann Friese, Helmut Weyl, Werner Wieland | 1997-09-02 |
| 5630920 | Electrochemical sensor for determining the oxygen concentration in gas mixtures | Karl-Hermann Friese, Frank Stanglmeier | 1997-05-20 |
| 5486279 | Electrochemical measuring probe | Karl-Hermann Friese, Helmut Weyl | 1996-01-23 |
| 5473304 | Method of protecting catalytic converters for exhaust gas purification and heat tone sensor for implementing the method | Karl-Hermann Friese, Gerhard Hoetzel | 1995-12-05 |
| 5423973 | Exhaust gas sensor and method of producing the same | Karl-Hermann Friese, Helmut Weyl | 1995-06-13 |
| 5380424 | Sensor with a catalytically active protective layer for determining the oxygen content in gases, and process for manufacturing such a sensor | Karl-Hermann Friese | 1995-01-10 |
| 5368713 | Laminated system for gas sensors and process for producing it | Karl-Hermann Friese, Eberhard Goehring | 1994-11-29 |
| 5334350 | Resistance probe for determining gas compositions and method of producing it | Karl-Hermann Friese, Werner Gruenwald, Gerhard Hoetzel | 1994-08-02 |