Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5629093 | Transparent multilayer film and its use for protection of data on documents as well as a tamper-proof label | Katharina J. Bischof, Wilhelm Kuester, Lynn E. Faykish | 1997-05-13 |