Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859210 | Motor fuel or lubricant composition containing polybutyl or polyisobutyl derivatives | Dieter Franz, Rudolf Kummer, Hans Peter Rath | 1989-08-22 |
| 4822945 | Preparation of decene oligomers and use thereof as lubricating oils | Klaus Bronstert, Hans Peter Rath, Hans-Michael Walter | 1989-04-18 |