Issued Patents All Time
Showing 76–96 of 96 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4369748 | Optical engine knock sensing system | Leo Steinke, Helmut Maurer, Klaus Muller, Franz Rieger | 1983-01-25 |
| 4358952 | Optical engine knock sensor | Helmut Maurer, Franz Rieger, Klaus Muller | 1982-11-16 |
| 4355618 | Method and apparatus for obtaining a control variable for the closed-loop control of the fuel-air ratio in the operating mixture of internal combustion engines | Klaus Muller, Franz Rieger, Helmut Maurer, Harald Reber, Hermann Dietz | 1982-10-26 |
| 4347113 | Oxygen content exhaust gas sensor, and method of its manufacture | Hermann Fischer, Karl-Hermann Friese, Hans-Ulrich Gruber, Wolfgang Heinemann, Gunter Knoll +5 more | 1982-08-31 |
| 4334974 | Electrochemical oxygen sensor, particularly for use with exhaust gases of internal combustion engines, and especially for polarographic application | Klaus Muller, Helmut Maurer, Franz Rieger, Karl-Hermann Friese, Harald Reber +4 more | 1982-06-15 |
| 4333439 | Apparatus for controlling the exhaust gas recirculation rate in an internal combustion engine | Klaus Muller, Helmut Maurer, Franz Rieger | 1982-06-08 |
| 4294679 | Flat electrochemical sensor, and method of its manufacture | Helmut Maurer, Klaus Muller, Franz Rieger, Gunther Stecher | 1981-10-13 |
| 4291572 | Method and system for controlling the temperature of a heat measuring sensor especially in motor vehicles | Helmut Maurer, Gerhard Dillman, Franz Rieger | 1981-09-29 |
| 4292158 | Oxygen sensor of the polarographic type, particularly for use with internal combustion engines | Klaus Muller, Helmut Maurer, Hermann Dietz, Karl-Hermann Friese, Wolfgang Leibfried +1 more | 1981-09-29 |
| 4283261 | Electrochemical sensor structure to determine oxygen content in combustion exhaust gases | Helmut Maurer, Klaus Muller, Franz Rieger, Hermann Dietz, Karl-Hermann Friese +1 more | 1981-08-11 |
| 4281545 | Aspirator for air sampling | — | 1981-08-04 |
| 4282080 | Electrochemical sensor, particularly for oxygen determination in combustion gases | Klaus Muller, Helmut Mauer, Karl-Hermann Friese, Franz Rieger, Heinz Geier | 1981-08-04 |
| 4277323 | Electrochemical oxygen sensor, particularly for use in the exhaust system of automotive-type internal combustion engines | Klaus Muller, Helmut Maurer, Franz Rieger, Bodo Ziegler | 1981-07-07 |
| 4270726 | Valve arrangement, especially for controlling flow of hot water through a heating device for motor vehicles | Wilhelm Hertfelder, Erich Junginger | 1981-06-02 |
| 4255100 | Rotary compressor with valve in rotor | — | 1981-03-10 |
| 4244244 | Method and apparatus for eliminating gear shifting jolt in motor vehicles | Helmut Rembold | 1981-01-13 |
| 4229147 | Rotary positive-displacement pump | Helmut Rembold, Walter Teegen, Achill Kessler, Roland Ehmann | 1980-10-21 |
| 4226295 | Gear shift system and method with optional gas pedal controlled shaft initiation | Helmut Rembold, Ferdinand Grob | 1980-10-07 |
| 4226142 | Automatic transmission utilizing a slider for pressure distribution to servo-elements controlling the gear ratio | Helmut Rembold | 1980-10-07 |
| 4212720 | Electrically heated electrochemical sensor construction, particularly to determine oxygen concentration in exhaust gases from combustion engines | Helmut Maurer, Franz Rieger, Rainer Schussler | 1980-07-15 |
| 4200071 | Exhaust gas control system for an internal combustion engine | Helmut Maurer, Gerhard Dillmann | 1980-04-29 |