Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4538031 | Home communications and control system | Gordon D. Benning, Robert K. Blackhall, Paul S. Wilker, Graham Neathway | 1985-08-27 |
| 4459434 | Home telephone exchange | Gordon D. Benning, Robert K. Blackhall, Paul S. Wilker, Graham Neathway | 1984-07-10 |
| 4326105 | Dial pulse detector | Brian Vaughan | 1982-04-20 |