Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12177768 | Maintaining access to services via SIM card | Nelson M. Leduc, Lauren E. Tappana, Nicholas J. Circosta, Andrew J. DALEY, Guozhi Huang +2 more | 2024-12-24 |
| 11917030 | Push notification distribution system | Huan He, Jonathon Sodos, Nicholas J. Circosta, Sean GEIGER, Nelson M. Leduc +7 more | 2024-02-27 |
| 11737012 | Maintaining access to services via SIM card | Nelson M. Leduc, Lauren E. Tappana, Nicholas J. Circosta, Andrew J. DALEY, Guozhi Huang +2 more | 2023-08-22 |
| 11228580 | Two-factor device authentication | Gokul P. Thirumalai, Daniel B. Pollack, Ryan W. Baker, David G. Knipp, Sudhakar N. Mambakkam +4 more | 2022-01-18 |
| 11012322 | Notification of service availability on a device | Nicholas J. Circosta, Daniel B. Pollack, Nelson M. Leduc, Ryan W. Baker | 2021-05-18 |
| 10321298 | Selection of preferred mechanisms for telephone number validation | Ryan W. Baker, Daniel B. Pollack | 2019-06-11 |
| 8929853 | Mobile emergency attack and failsafe detection | — | 2015-01-06 |
| 8619850 | System and method for monitoring broadcast signals | Michael W. Smereski | 2013-12-31 |
| 5050134 | Position determining apparatus | — | 1991-09-17 |
| 5043950 | Apparatus and method for distance determination | Stanley Schorum | 1991-08-27 |
| 5009277 | Method and apparatus for position determination | Seymour J. Sindeband | 1991-04-23 |
| 4956824 | Position determination apparatus | Seymour J. Sindeband | 1990-09-11 |