Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5795643 | Anticopying film | Helmut Steininger, Peter Heilmann | 1998-08-18 |
| 5728449 | Anti-copy film layer for documents | Helmut Steininger, Peter Heilmann | 1998-03-17 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5795643 | Anticopying film | Helmut Steininger, Peter Heilmann | 1998-08-18 |
| 5728449 | Anti-copy film layer for documents | Helmut Steininger, Peter Heilmann | 1998-03-17 |