Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8811573 | Method and system for verifying the status of 911 emergency telephone services | Thomas Killian, Norman L. Schryer | 2014-08-19 |
| 8208606 | Method and system for verifying the status of 911 emergency telephone services | Thomas Killian, Norman L. Schryer | 2012-06-26 |