| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 3 | |
| #2 | United States | 3 | |
| #3 | EPO (European Patent Office) | 1 | |
| #4 | Italy | 1 | |
| #5 | Japan | 1 | |
| #6 | Netherlands | 1 | |
| #7 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Dynamo-electric machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nordebo Knut Assar | 7 |
| #2 | Kunuto Atsusaru Norudebo | 1 |
| #3 | Assar Nordebo Knut | 1 |
| Publication | Filing date | Title |
|---|---|---|
| SE430193B | Three-phase generator with coil-free rotor | |
| EP0026759A1 | A three-phase generator having no winding | |
| US4075521A | Multi-phase generator without slip rings and brushes | |
| US4038575A | Multi-phase generator | |
| US3518473A | Alternating current generator without slip rings and brushes |