| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 4 | |
| #2 | WIPO (World Intellectual Property Organization) | 4 | |
| #3 | EPO (European Patent Office) | 3 |
| # | Industry | |
|---|---|---|
| #1 | Basic communication technologies | |
| #2 | Audio-visual technology | |
| #3 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Amplifiers | |
| #2 | Loudspeakers and microphones | |
| #3 | Cables and insulators |
| # | Name | Total Patents |
|---|---|---|
| #1 | Perrot Gerard | 11 |
| Publication | Filing date | Title |
|---|---|---|
| FR2762921A1 | Electric cable with low memory | |
| FR2759244A1 | Shielding device and electroacoustic equipment provided with this device | |
| FR2700083A1 | Stable distortion amplifier for audio signals. | |
| FR2694850A1 | Amplifier stage with low thermal distortion. |