Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5203892 | Coke filter | Ludger Brentrup | 1993-04-20 |
| 5149266 | Method and apparatus for cooling hot material | Otto Heinemann | 1992-09-22 |
| 4941821 | Method and apparatus for the heat treatment of fine-grained material | Manfred Durr, Georg Unland, Wolfgang Rother, Gunter Driemeier | 1990-07-17 |
| 4901448 | Suspension preheater | Wolfgang Rother, Heinz-Werner Thiemeyer | 1990-02-20 |
| 4861265 | Apparatus and method for the heat treatment of fine-grained material | Manfred Durr, Georg Unland, Gunter Driemeier, Karl Krutzner, Michael von Seebach +3 more | 1989-08-29 |
| 4778381 | Reciprocating grate drive apparatus | Otto Heinemann | 1988-10-18 |
| 4762489 | Cooling apparatus | Hermann Niemerg | 1988-08-09 |
| 4756093 | Apparatus for heat exchange between gas and fine-grained material | Otto Heinemann | 1988-07-12 |
| 4732561 | Apparatus for cooling hot material | Karl Eiring, Manfred Durr | 1988-03-22 |
| 4681021 | Driving apparatus | Otto Heinemann | 1987-07-21 |
| 4660805 | Device for shutting off a pipe | Franz D. Hahn, Otto Heinemann | 1987-04-28 |
| 4464112 | Apparatus for introducing fine material into a combustion zone | Otto Heinemann, Heinz-Dieter Baldus | 1984-08-07 |
| 4350244 | Push grid | Otto Heinemann, Rainer Philipp, Artur Berger | 1982-09-21 |
| 4344783 | Cyclone separator | Otto Heinemann | 1982-08-17 |
| 4257766 | Processes and apparatus for the heat treatment of fine-grained material | Horst Ritzmann, Klaus Bauer, Wolf Goldmann, Hennig Korn | 1981-03-24 |