Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7098769 | Identification system for verifying an authorization to access an object or to use an object, particularly a motor vehicle | — | 2006-08-29 |
| 6873248 | Identification system for confirming authorization for access to an object or the use of an object, in particular of a motor vehicle | — | 2005-03-29 |
| 6147505 | Adapter arrangement for electrically testing printed circuit boards | Wilhelm Tamm, Steffen Laur, Volker Harr | 2000-11-14 |
| 5413744 | Process for inductive heating of ceramic shaped parts | Raimund Bruckner, Ullrich Hintzen, Ernst Luhrsen, Hans Rothfuss | 1995-05-09 |
| 5302492 | Method of manufacturing printing circuit boards | Werner MOTZ, Werner Kornmayer, Michael Moser | 1994-04-12 |
| 5190716 | Process for manufacturing and preheating a shaped ceramic part | Raimund Bruckner, Hans Rothfuss, Ernst Luhrsen | 1993-03-02 |
| 5171495 | Immersion nozzles for metal melts | Ernst Luhrsen | 1992-12-15 |
| 5092500 | Refractory discharge device with separate external reinforcement member | Udo Weber, Ernst Luhrsen, Steve Lee | 1992-03-03 |
| 4923225 | Assembly for connecting a metal member to a ceramic refractory member | Ernst Luhrsen, Siegfried Pohl, Wilhelm Parbel, Karl Baum | 1990-05-08 |
| 4293767 | Apparatus for measuring the thickness of thin layers | Helmut Fischer, Willi Steegmuller | 1981-10-06 |