Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9429133 | Method and apparatus for generating an ion current between electrodes of a spark plug | Arun Sasikumar Sujatha, Ganghua Ruan, Stefan Heinzelmann, Dirk Wüstenhagen | 2016-08-30 |
| 6432168 | Measuring arrangement and method for monitoring the operability of a soot filter | — | 2002-08-13 |
| 6355151 | Gas sensor | Susanne Brosda, Ulrich Guth, Silvia Lenaerts, Götz Reinhardt | 2002-03-12 |
| 6342151 | Method of using a gas sensor | Susanne Brosda, Ulrich Guth, Silvia Lenaerts, Götz Reinhardt | 2002-01-29 |
| 5972296 | Oxygen sensors made of alkaline-earth-doped lanthanum ferrites and method of use thereof | Karl-Heinz Hardtl, Andreas Krug | 1999-10-26 |
| 5969232 | Catalytic layer system | Michael Tafferner | 1999-10-19 |
| 5880406 | Cover layer for electrical conductors or semiconductors | Peter Gerstel, Michael Tafferner | 1999-03-09 |
| 5843858 | Oxygen sensors made of alkaline-earth-doped lanthanum ferrites | Karl-Heinz Hardtl, Andreas Krug | 1998-12-01 |
| 5792666 | Oxygen sensor based on non-doped cuprate | Karl-Heinz Hardtl, Rainer Blase | 1998-08-11 |
| 5730543 | Electrically conducting connection | Michael Tafferner, Hagen Fischer | 1998-03-24 |
| 5658445 | Combination of lambda probes | Edelbert Hafele, Jorg Huber | 1997-08-19 |
| 5352353 | Device for monitoring the concentration of gaseous constituents in mixtures of gases | Edelbert Hafele | 1994-10-04 |
| 5279855 | Manufacture of inert, catalytic or gas-sensitive ceramic layers for gas sensors | Edelbert Hafele, Karl-Heinz Hardtl, Andreas Müller | 1994-01-18 |
| 4988970 | Semiconductor for a resistive gas sensor having a high response speed | Edelbert Hafele, Karl-Heinz Hardtl, Andreas Müller | 1991-01-29 |