Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4932776 | Fingerprint acquisition system | Keith L. Knowlston | 1990-06-12 |
| 4785171 | Fingerprint acquisition system with a fiber optic block | Keith L. Knowlton | 1988-11-15 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4932776 | Fingerprint acquisition system | Keith L. Knowlston | 1990-06-12 |
| 4785171 | Fingerprint acquisition system with a fiber optic block | Keith L. Knowlton | 1988-11-15 |