Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4968444 | Lubricating oil additives | Helmut Knoell, Horst Pennewiss, Heinz Jost | 1990-11-06 |
| 4937302 | Method for separating methanol-methyl methacrylate mixtures | — | 1990-06-26 |
| 4229311 | Lubricating oil additives | Franz Wenzel, Heinz Jost, Hans Pilz | 1980-10-21 |