Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7304985 | Multimedia communication management system with line status notification for key switch emulation | Marvin L. Sojka, Christopher Adams, Calvin Lewis, Robert Nebiker | 2007-12-04 |
| 7177412 | Multi-media communication management system with multicast messaging capabilities | Danny L. Berlyoung, Calvin Lewis | 2007-02-13 |
| 6912283 | Teledata space and docking station with modular and integrated display | Robert F. Meyerson, Calvin Lewis | 2005-06-28 |