Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691284 | Synthetic oligomeric oils | Claudia Beyer, Ruediger Jelitte, Horst Pennewiss | 1997-11-25 |
| 5043087 | Addives for paraffinic lubricants | Horst Pennewiss, Helmut Knoell | 1991-08-27 |
| 4968444 | Lubricating oil additives | Helmut Knoell, Ulrich Schoedel, Horst Pennewiss | 1990-11-06 |
| 4867894 | Pour point improving additives for mineral oils | Horst Pennewiss, Helmut Knoell | 1989-09-19 |
| 4822508 | Shear stable multirange oils having an improved viscosity index | Horst Pennewiss, Helmut Knoell | 1989-04-18 |
| 4338418 | Process for graft copolymerization | Hellmuth Knoell, Gerhard Markert, Horst Pennewiss | 1982-07-06 |
| 4290925 | Lubricating oil additives | Horst Pennewiss, Rainer Benda, Helmuth Knoell | 1981-09-22 |
| 4281081 | Process for graft copolymerization | Hellmuth Knoell, Gerhard Markert, Horst Pennewiss | 1981-07-28 |
| 4229311 | Lubricating oil additives | Franz Wenzel, Ulrich Schoedel, Hans Pilz | 1980-10-21 |