Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6072860 | Telephone apparatus with recording of phone conversations on massive storage | Chang W. Kek, Kenneth Salter | 2000-06-06 |
| 6052454 | Telephone apparatus with recording of phone conversations on massive storage | Cheng W. Kek, Kenneth Salter | 2000-04-18 |