Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6689995 | Apparatus and method for healing a workpiece of metal | Helmut Eberhardt, Karl-Heinz Grosse, Jurgen Lemke | 2004-02-10 |
| 6677560 | Apparatus for inductively heating a workpiece | Helmut Eberhardt, Karl-Heinz Grosse, Jurgen Lemke | 2004-01-13 |
| 5281781 | Apparatus for switching a high-current power source | Michael Protzmann, Heiko W. Spengemann | 1994-01-25 |