Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859210 | Motor fuel or lubricant composition containing polybutyl or polyisobutyl derivatives | Dieter Franz, Rudolf Kummer, Helmut Mach | 1989-08-22 |
| 4844714 | Fuels containing small amounts of alkoxylates and polycarboximides | Hans-Henning Vogel, Knut Oppenlaender, Charalampos Gousetis | 1989-07-04 |
| 4832702 | Polybutyl-and polyisobutylamines, their preparation, and fuel compositions containing these | Rudolf Kummer, Dieter Franz | 1989-05-23 |
| 4822945 | Preparation of decene oligomers and use thereof as lubricating oils | Klaus Bronstert, Helmut Mach, Hans-Michael Walter | 1989-04-18 |