Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6537647 | Polyester film with surface topography matched to the intended use, the use of the film and process for its production | Herbert Peiffer, Gottfried Hilkert | 2003-03-25 |
| 6534169 | Polyester film with a high oxygen barrier, the use of the film and process for its production | Herbert Pfeiffer, Gottfried Hilkert | 2003-03-18 |