| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 7 | |
| #2 | EPO (European Patent Office) | 2 | |
| #3 | Belgium | 1 | |
| #4 | Switzerland | 1 | |
| #5 | Germany | 1 | |
| #6 | Spain | 1 | |
| #7 | United Kingdom | 1 | |
| #8 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Control | |
| #2 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Alarm systems | |
| #2 | Fire-fighting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hugon Emile | 7 |
| #2 | Gamma Electronic La Societe | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FR2650421A1 | Velocimetric circuit for smoke detector | |
| FR2636157A1 | FIRE ALARM DETECTOR ADDRESS AND PROGRAMMING CENTRAL | |
| FR2633761A1 | Smoke detector with integrated circuit for address | |
| FR2579802A1 | New punctual smoke optical detector | |
| CH649639A5 | Smoke detector. | |
| FR2524179A2 | Smoke detector using ionisation chamber - where detector is assembled from inexpensive, interchangeable polymer mouldings and uses electronic velocimeter circuit |