Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5692039 | Improved data transmission via a public switched telephone network | James M. Dorsey | 1997-11-25 |
| 5467390 | Data transmission via a public switched telephone network | James M. Dorsey | 1995-11-14 |