Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5792013 | Plate link chain for a continuously variable, movable cone-type transmission | Johannes Heinrich, Manfred Maier, Klaus Sohnge, Dirk Weitzel, Gert Schonnenbeck +1 more | 1998-08-11 |
| 4870256 | Graphite holding elements for heating bars in industrial furnaces | Wolfgang Heise, Rolf Schuster | 1989-09-26 |