Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5763074 | Heat sealing film | Albert Kohl, Karl-Heinz Romer, Peter Heilmann, Michael Hitzfeld | 1998-06-09 |
| 5419959 | Magnetic recording medium having an infra-red light transparent balkcoat layer | Hermann Roller, Peter Heilmann, Michael Hitzfeld, Dieter Stockburger, Reinhold Baur +4 more | 1995-05-30 |
| 5346761 | Flexible magnetic recording media having a backing coating containing a polyurethane resin having a phosphate group and precipated silica | Hermann Roller, Peter Engelhardt, Reinhold Baur, Michael Bobrich, Werner Lenz +1 more | 1994-09-13 |