Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7953211 | Automated ringback update system | Mark R. Gregorek, Jeffrey C. Dillow | 2011-05-31 |
| 7920689 | Ringback replacement insertion system | Mark R. Gregorek, Jeffrey C. Dillow | 2011-04-05 |
| 7873148 | Handset originated programmable ringback replacement system | Mark R. Gregorek, Jeffrey C. Dillow | 2011-01-18 |