Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6829332 | Personal dial tone service with personalized call waiting | Robert D. Farris, Michael J. Strauss | 2004-12-07 |
| 6704405 | Personal dial tone service with personalized call waiting | Robert D. Farris, Michael J. Strauss | 2004-03-09 |