Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5715687 | Double layer cooler | Bernd Nienaber, Hermann Niemerg | 1998-02-10 |
| 4941821 | Method and apparatus for the heat treatment of fine-grained material | Manfred Durr, Georg Unland, Wolfgang Rother, Heinz-Herbert Schmits | 1990-07-17 |
| 4861265 | Apparatus and method for the heat treatment of fine-grained material | Manfred Durr, Georg Unland, Karl Krutzner, Heinz-Herbert Schmits, Michael von Seebach +3 more | 1989-08-29 |
| 4840561 | Apparatus for the heat treatment of fine-grained material | Georg Unland | 1989-06-20 |
| 4815970 | Apparatus for the heat treatment of fine-grained material | Georg Unland | 1989-03-28 |
| 4808108 | Method and apparatus for the heat treatment of fine-grained material | Peter Tiggesbaumker, Manfred Durr, Jurgen Wurr, Karl Krutzner, Wolfgang Rother +4 more | 1989-02-28 |