Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5340504 | Light-polarizing films containing dichroic dyes | — | 1994-08-23 |
| 5329127 | Method for the identification of plastics | Arno Becker, Klaus Luttermann, Peter Orth, Ludger Heiliger, Aziz E. Sayed | 1994-07-12 |
| 5286420 | Production of light polarizing films | Friedrich W. Krock, Edouard Roche | 1994-02-15 |