Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4921543 | Liquifiers and their preparation | Jafar Omran | 1990-05-01 |
| 4871443 | Novel method for extraction of salts from coal tar and pitches | Herbert Beneke, Rudolf Oberkobusch, Siegfried Peter, Wolfgang Jaumann | 1989-10-03 |
| 4744321 | Ship for the liquid transportation of high melting aromatic hydrocarbons | Michael Pfeuffer | 1988-05-17 |
| 4718943 | Wood preserving impregnating oil and use thereof | Gernot Loehnert | 1988-01-12 |
| 4377040 | Process for the modification of wood | Eberhard Giebeler, Bernhard Bluhm, Klaus Moraw, Gerd Collin, Heinzpeter Nilles | 1983-03-22 |