Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6819219 | Method for biometric-based authentication in wireless communication for access control | Rudolf Maarten Bolle, Sharon L. Nunes, Sharathchandra U. Pankanti, Nalini K. Ratha, Thomas G. Zimmerman | 2004-11-16 |
| 6703570 | Digital pen using ultrasonic tracking | Gregory Fraser Russell, Thomas G. Zimmerman | 2004-03-09 |