Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6475964 | Motor oil with high dispersivity and good wear protection characteristics | Horst Pennewiss, Gerhard Renner | 2002-11-05 |
| 4282132 | Lubricating oil additives | Rainer Benda, Helmuth Knoell, Horst Pennewiss | 1981-08-04 |