Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10394415 | User authentication security system | Yuk L. Chan, Michael D. Essenmacher, David B. Lection, Eric L. Masselle | 2019-08-27 |
| 10296162 | User authentication security system | Yuk L. Chan, Michael D. Essenmacher, David B. Lection, Eric L. Masselle | 2019-05-21 |
| 10002240 | Conducting a sequence of surveys using a challenge-response test | Yuk L. Chan, Michael D. Essenmacher, James M. Hertzig, David B. Lection | 2018-06-19 |