Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5084351 | Optically variable multilayer thin film interference stack on flexible insoluble web | Thomas Mayer, Gary S. Ash | 1992-01-28 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5084351 | Optically variable multilayer thin film interference stack on flexible insoluble web | Thomas Mayer, Gary S. Ash | 1992-01-28 |