Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7231031 | AIN call queuing | John Verbil, Martin R. Marks, R. Eric Pflum, William C. Catellier | 2007-06-12 |
| 5844896 | System and method for routing telephone calls | Martin R. Marks, R. Eric Pflum, William C. Catellier | 1998-12-01 |