Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5022852 | Rotary kiln | Michael J. Blasko | 1991-06-11 |
| 4983782 | Process for treating wastes and the like by low temperature carbonization and further processing of the low temperature carbonization oil | Ludwig Merz, Klaus Niemann | 1991-01-08 |
| 4978369 | Process for feeding carbonaceous material into reaction spaces | Bernd Pontow, Albert Grimminger, Jurgen Strecker | 1990-12-18 |
| 4863586 | Process for recovery of low-temperature carbonization oil | — | 1989-09-05 |
| 4666397 | Fluid cooled burner | Joachim Friedrich, Bernd Pontow | 1987-05-19 |
| 4512873 | Process for low temperature carbonization of hydrogenation residues | Gert Escher, Rolf Holighaus | 1985-04-23 |
| 4388173 | Method and apparatus for distillation of oil shale | Gerd Escher, Heinz Frohnert | 1983-06-14 |