Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5438619 | Solid state primary telephone protector | William J. Shannon, John J. Napiorkowski | 1995-08-01 |
| 5410596 | Station protector module for network interface device | William J. Shannon, John P. DuBois, John J. Napierkowski | 1995-04-25 |
| 5031067 | Five pin protector module for telephone circuits | John J. Napiorkowski, Bruce D. Atkinson | 1991-07-09 |
| 4958254 | Five pin protector module for telephone circuits | John J. Napiorkowski, Bruce D. Atkinson | 1990-09-18 |