Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6718025 | System and method for toll notification when placing a call | Wendy Kay Kropenick | 2004-04-06 |
| 6570973 | System and method for toll notification when placing a call | Wendy Kay Kropenick | 2003-05-27 |