Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5610977 | Number portability using ISUP message option | L. Lloyd Williams | 1997-03-11 |
| 5602909 | Number portability using database query | L. Lloyd Williams | 1997-02-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5610977 | Number portability using ISUP message option | L. Lloyd Williams | 1997-03-11 |
| 5602909 | Number portability using database query | L. Lloyd Williams | 1997-02-11 |