Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4430126 | Hydraulically setting shaped brick, particularly for construction, and method for its production | Manfred Ackermann, Dieter Leininger | 1984-02-07 |
| 4257879 | Process for dewatering coal slurries | Bernd Bogenschneider, Heinz Kubitza, Wilhelm Blankmeister, Dieter Leininger | 1981-03-24 |