Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5500032 | Method for continuously melting down scrap metal | Wolfgang Nieder, Manfred Winkler, Gerhard Perchtold, Leo Seirlehner, Herbert B. Kohler | 1996-03-19 |
| 5174315 | System for cleaning objects | Rudiger K. Hellstern, Peter Hosel, Ulrich Lachenmayer, Herbert B. Kohler | 1992-12-29 |