Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6810120 | Method of determining answer supervision at a line appearance of a public switch telephone network | Michael J. Elder, Joseph Kott, Raymond L. Ruggerio, Jane Ann Thompson, Robin Jeffrey Thompson | 2004-10-26 |
| 6801773 | Apparatus, method and system for mobile wireless communication hand-off utilizing shared directory numbers and multiway capabilities | Eugene William Foster | 2004-10-05 |
| 6799040 | Apparatus, method and system for mobile wireless communication hand-off utilizing shared directory numbers | Eugene William Foster | 2004-09-28 |