Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4948634 | Process for troublefree coating of hydrophobic materials with polyurethanes | Alexander Riebel, Karl-Wilhelm Schranz | 1990-08-14 |
| 4940653 | Multilayered color photographic material having an alkali soluble interlayer | Prem Lalvani, Diethart Lademann, Hans-Theo Buschmann, Heinz Reif | 1990-07-10 |