| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 9 | |
| #2 | France | 5 | |
| #3 | Germany | 4 | |
| #4 | Austria | 2 | |
| #5 | United States | 2 | |
| #6 | United Kingdom | 1 | |
| #7 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Basic communication technologies | |
| #3 | Electrical machinery and energy | |
| #4 | Measurement |
| # | Name | Total Patents |
|---|---|---|
| #1 | Stefan Kudelski | 8 |
| #2 | Kudelski Stefan | 8 |
| #3 | Louis Favre | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CH660809A5 | Method of magnetic recording, magnetic recording/reading device with mobile head for its implementation and use of the device | |
| US3681625A | Variable,nonlinear impedance | |
| US3617777A | Automatic sensitivity-regulating device |