Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5712908 | Apparatus and method for generating call duration billing records utilizing ISUP messages in the CCS/SS7 telecommunications network | Yi-Kuei Lin, Michael H. Penrod, Nancy L. Sweet, Linda Trout-Jordan, Gerald J. Wardzinski | 1998-01-27 |