Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6009156 | Method for accommodating multiple calling cards during a single call in a telecommunications network | — | 1999-12-28 |
| 5864609 | Method for establishing customized billing arrangements for a calling card in a telecommunications network | Michael Joseph Haller, Brian J. Higgins, Nasrin Hoque, Kathryn Ann Jurie, Dianne Green Russell | 1999-01-26 |