| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 9 | |
| #2 | United States | 8 | |
| #3 | United Kingdom | 6 | |
| #4 | Germany | 3 | |
| #5 | Australia | 2 | |
| #6 | Brazil | 2 | |
| #7 | Switzerland | 2 | |
| #8 | Spain | 2 | |
| #9 | Italy | 2 | |
| #10 | South Africa | 2 | |
| #11 | France | 1 | |
| #12 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Telecommunications | |
| #2 | Computer technology | |
| #3 | Digital networks | |
| #4 | Control |
| # | Technology | |
|---|---|---|
| #1 | Multiplex communication | |
| #2 | Electric digital data processing | |
| #3 | Transmission systems | |
| #4 | Digital information transmission | |
| #5 | Alarm systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Long Robert G | 9 |
| #2 | Long R | 8 |
| #3 | Huebner Werner P E | 6 |
| #4 | Huebner Werner Paul Ernst | 5 |
| #5 | Long Robert Gordon | 5 |
| #6 | Huebner W | 5 |
| #7 | Mackay William Allan | 2 |
| #8 | Mackay William A | 2 |
| #9 | Huebner W P E | 1 |
| #10 | Long R G | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4052567A | Multiplexer receiver terminator | |
| US4052566A | Multiplexer transmitter terminator | |
| US3828312A | Digital data change detector | |
| US3825696A | Digital data interface system | |
| CA972089A | Multiplexer neuter detector | |
| US3691305A | Multiplexer interval detector | |
| US3723658A | Extendable multiplexer | |
| US3691304A | Multiplexer transmission line circuit |