Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4701932 | Method for regulating the electrodes in a furnace having freely burning electric arcs | Hans-Dietrich Obenauf | 1987-10-20 |
| 4683577 | Method and apparatus for regulating arc discharge furnace | Hans-Dietrich Obenauf | 1987-07-28 |
| 4663764 | Method and apparatus for electrically balancing three-phase arc discharge furnaces | Hans-Dietrich Obenauf | 1987-05-05 |
| 4459697 | Electrode arrangement for electric arc furnaces | Werner Hoke, Gunter Meyer | 1984-07-10 |
| 4425658 | Conductor arrangement for a three-phase electric arc furnace | Friedhelm Milde | 1984-01-10 |
| 4395649 | Linear electromagnetic vibrator | Ludwig Thome, Karl Wanner | 1983-07-26 |