| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 7 | |
| #2 | Germany | 2 | |
| #3 | France | 2 | |
| #4 | Sweden | 2 | |
| #5 | Israel | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Special electric heating or lighting | |
| #2 | Magnets and transformers | |
| #3 | Lighting device details | |
| #4 | Special light sources |
| # | Name | Total Patents |
|---|---|---|
| #1 | Fritz Knobel-Dubs | 7 |
| #2 | Knobel-Dubs Fritz | 2 |
| #3 | Knobel Dubs F | 1 |
| #4 | Knobel-Dubs F | 1 |
| Publication | Filing date | Title |
|---|---|---|
| IL30283D0 | Magnet core especially for choke coils or transformers |