| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Brazil | 2 | |
| #2 | Spain | 2 | |
| #3 | Italy | 2 | |
| #4 | United States | 2 | |
| #5 | Belgium | 1 | |
| #6 | Canada | 1 | |
| #7 | Switzerland | 1 | |
| #8 | Germany | 1 | |
| #9 | EPO (European Patent Office) | 1 | |
| #10 | France | 1 | |
| #11 | United Kingdom | 1 | |
| #12 | Japan | 1 | |
| #13 | Portugal | 1 | |
| #14 | Yugoslavia (Serbia and Montenegro) | 1 | |
| #15 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Control | |
| #2 | Telecommunications |
| # | Technology | |
|---|---|---|
| #1 | Alarm systems | |
| #2 | Transmission systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rizzo Corrado | 12 |
| #2 | Rizzo C | 2 |
| #3 | Rizoo Koraado | 1 |
| #4 | Corrado Rizzo | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ZA8505319B | Electronic apparatus particularly suitable for the processing and memorising and returning of electrical signals and coded messages | |
| GB8403409D0 | Remote signalling apparatus |