Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5194099 | Sinter magnet based on Fe-Nd-B | Waldemar Draxler, Gunter Petzow, Andreas Buchel, Klaus-Dieter Durst, Ernst-Theo Henig +2 more | 1993-03-16 |
| 4618351 | Device for cleaning of gases | Thomas Frey | 1986-10-21 |
| 4539503 | Rapid-heating, high-temperature-stable spark plug for internal combustion engines | Karl-Hermann Friese, Walter Gohl, Peter Sternad | 1985-09-03 |
| 4535487 | Endoprosthesis shaft | Walter Gohl | 1985-08-20 |
| 4533392 | High strength sintered alloy | Robert S. Zeller | 1985-08-06 |
| 4532492 | Temperature-compensated, oxygen-content gas sensor | Hermann Fischer, Karl-Hermann Friese, Peter Scharner | 1985-07-30 |
| 4503348 | Magnetic transducer | Gottfried Meudt | 1985-03-05 |
| 4418661 | Glow plug, particularly for diesel engine | Thomas Frey, Heinz Geier, Gerhard Holfelder, Gunther Knoll | 1983-12-06 |
| 4356571 | Prosthetic device | Walter Gohl | 1982-11-02 |
| 4339320 | Heated gas composition sensor structure | Karl-Hermann Friese | 1982-07-13 |
| 4334974 | Electrochemical oxygen sensor, particularly for use with exhaust gases of internal combustion engines, and especially for polarographic application | Klaus Muller, Helmut Maurer, Ernst Linder, Franz Rieger, Karl-Hermann Friese +4 more | 1982-06-15 |
| 4320080 | Method to manufacture soft magnetic pressed bodies | Hans-Martin Wiedenmann | 1982-03-16 |
| 4268468 | Method of making a medical prosthesis | Hans-Martin Wiedenmann | 1981-05-19 |
| 4221650 | Solid electrolyte oxygen sensors | Karl-Hermann Friese, Heinz Geier | 1980-09-09 |
| 4183798 | Stabilized zirconium dioxide compositions and oxygen sensors utilizing said compositions | Karl-Hermann Friese | 1980-01-15 |