Issued Patents All Time
Showing 26–50 of 74 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5653858 | Limit current sensor for determining the lambda value in gas mixtures | Werner Gruenwald | 1997-08-05 |
| 5630920 | Electrochemical sensor for determining the oxygen concentration in gas mixtures | Hans-Martin Wiedenmann, Frank Stanglmeier | 1997-05-20 |
| 5628848 | Process for the production of composite systems having at least two inorganic ceramic layers | Werner Gruenwald, Ulrich Eisele | 1997-05-13 |
| 5545301 | Sensor element for the determination of concentration of gas constituent(s) | Werner Gruenwald, Roland Stahl, Claudio De La Prieta, Gerhard Schneider, Harald Neumann | 1996-08-13 |
| 5507174 | Polarographic sensor | Hermann Dietz, Werner Gruenwald | 1996-04-16 |
| 5505837 | Sensor arrangement for determining gas components and/or gas concentrations of gas mixtures | Hermann Dietz, Werner Gruenwald, Gerhard Hoetzel, Harald Neumann, Johann Riegel +1 more | 1996-04-09 |
| 5486279 | Electrochemical measuring probe | Helmut Weyl, Hans-Martin Wiedenmann | 1996-01-23 |
| 5477022 | Electrode and process for manufacturing it | — | 1995-12-19 |
| 5476001 | Sensor for determining gas components and/or gas concentrations of gas mixtures | Gerhard Hoetzel, Harald Neumann, Johann Riegel, Werner Gruenwald | 1995-12-19 |
| 5474665 | Measuring sensor for determining the oxygen content of gas mixtures | Hermann Dietz, Hermann Fischer, Manfred Koeder, Werner Gruenwald, Ulrich Eisele | 1995-12-12 |
| 5473304 | Method of protecting catalytic converters for exhaust gas purification and heat tone sensor for implementing the method | Hans-Martin Wiedenmann, Gerhard Hoetzel | 1995-12-05 |
| 5435901 | Electrochemical measuring sensor | Helmut Weyl, Werner Wieland | 1995-07-25 |
| 5423973 | Exhaust gas sensor and method of producing the same | Hans-Martin Wiedenmann, Helmut Weyl | 1995-06-13 |
| 5406246 | Temperature sensor and method for producing temperature sensor elements | Harald Neumann | 1995-04-11 |
| 5380424 | Sensor with a catalytically active protective layer for determining the oxygen content in gases, and process for manufacturing such a sensor | Hans-Martin Wiedenmann | 1995-01-10 |
| 5374390 | Process for producing a layer system for gas sensors | — | 1994-12-20 |
| 5368713 | Laminated system for gas sensors and process for producing it | Hans-Martin Wiedenmann, Eberhard Goehring | 1994-11-29 |
| 5334350 | Resistance probe for determining gas compositions and method of producing it | Werner Gruenwald, Hans-Martin Wiedenmann, Gerhard Hoetzel | 1994-08-02 |
| 5314604 | Sensor element for limit current sensors to determine the .lambda.-value of gas mixtures | Werner Gruenwald, Hans-Martin Wiedenmann | 1994-05-24 |
| 5310575 | Method of making a porous ceramic protective layer on an electrode of an electrochemical sensor for exposure to hot gas | Hans-Martin Wiedenmann, Eva Soll | 1994-05-10 |
| 5181007 | PTC temperature sensor for use in an exhaust gas system | Hans-Martin Wiedenmann | 1993-01-19 |
| 5172466 | Process for producing PTC temperature sensor elements for PTC temperature sensor | Hans-Martin Wiedenmann, Gunther Stecher | 1992-12-22 |
| 5142266 | NTC temperature sensor and process for producing NTC temperature sensing elements | Gunther Stecher, Hans-Martin Wiedenmann | 1992-08-25 |
| 5137615 | Sensor element for limiting current sensors for determination of the .lambda. value of gas mixtures | Gerhard Hoetzel | 1992-08-11 |
| 5098549 | Sensor element for limiting current sensors for determining the .lambda. value of gas mixtures | Werner Grunwald | 1992-03-24 |