Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5054088 | Signature verification data compression for storage on an identification card | Steven Gunderson | 1991-10-01 |
| 4720869 | Hand dimension verification | — | 1988-01-19 |
| 4684802 | Elliptical finger press scanner with rotating light source | Paul A. Hakenewerth, James R. Walker, James M. White | 1987-08-04 |