Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE44789 | Wire electrode and process for producing a wire electrode, particular for a spark erosion process | Bernd Barthel, Heinrich Groos | 2014-03-04 |
| 6806433 | High-strength erosion electrode | Bernd Barthel, Heinrich Groos, Klaus Tauber | 2004-10-19 |
| 6447930 | Wire electrode and process for producing a wire electrode, particular for a spark erosion process | Bernd Barthel, Heinrich Groos | 2002-09-10 |
| 6448527 | High-strength erosion electrode | Bernd Barthel, Heinrich Groos, Klaus Tauber | 2002-09-10 |
| 5762726 | Wire electrode and process for producing a wire electrode, particular for a spark erosion process | Bernd Barthel, Heinrich Groos | 1998-06-09 |
| 5590000 | Pivoting device for a shutter arranged in the area of the insertion opening of the loading mechanism of a magnetic-tape cassette apparatus | Christian Hopf | 1996-12-31 |
| 5331484 | Magnetic tape cassette apparatus having a control rod, switching transmitters, and a catch rod | Karl Klos-Hein, Hermann Rumpf | 1994-07-19 |
| 5248104 | Wire-unwinding device | Heinrich Groos, Jurgen Gerlach | 1993-09-28 |
| 5231270 | Wire electrode | Heinrich Groos | 1993-07-27 |
| 5189573 | Magnetic tape cassette apparatus with a drive mechanism which serves for playing magnetic tape cassettes | Karl Klos-Hein | 1993-02-23 |
| 4935594 | Eroding electrode, in particular a wire electrode for the sparkerosive working | Heinrich Groos | 1990-06-19 |
| 4924050 | Wire electrode for use in spark-erosive cutting | — | 1990-05-08 |