| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Brazil | 2 | |
| #2 | Germany | 2 | |
| #3 | France | 2 | |
| #4 | United Kingdom | 2 | |
| #5 | Netherlands | 2 | |
| #6 | Belgium | 1 | |
| #7 | Canada | 1 | |
| #8 | Italy | 1 | |
| #9 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Electrical machinery and energy | |
| #3 | Telecommunications |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dorfman B | 3 |
| #2 | Lizzio N John | 2 |
| #3 | Lizzio N | 1 |
| #4 | Zadikow Victor | 1 |
| #5 | Dorfman Bertrand | 1 |
| #6 | Lizzio J | 1 |
| #7 | Forfman Bertrand | 1 |
| #8 | Dorfmann Betrand | 1 |
| #9 | Zadikon V | 1 |
| Publication | Filing date | Title |
|---|---|---|
| BR7808237A | Process for the transmission and reception of electrical signs and communication system in chain current | |
| GB2050124A | Carrier current communications system | |
| US3818481A | Multiple address direct coupled communication and control current carrier system |