| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 3 | |
| #2 | Germany | 3 | |
| #3 | France | 2 | |
| #4 | Italy | 2 | |
| #5 | Spain | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Magnets and transformers | |
| #2 | AC and DC conversion devices | |
| #3 | Electric motor controls |
| # | Name | Total Patents |
|---|---|---|
| #1 | Otto Kreutzer | 2 |
| #2 | Kreutzer Otto | 2 |
| #3 | Kruijsen Theo | 2 |
| #4 | Mayer Werner | 2 |
| #5 | Arx Hans Von | 1 |
| #6 | Arx Hans V | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CH612548A5 | Method and arrangement for operating a three-phase motor by means of a DC voltage source | |
| ES408701A1 | A transformer dispersion device. (Machine-translation by Google Translate, not legally binding) | |
| DE2256350A1 | DC CONVERTER |