| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 12 | |
| #2 | Spain | 2 | |
| #3 | Switzerland | 1 | |
| #4 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | AC and DC conversion devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Massolle Joseph | 13 |
| #2 | Vogt Hans | 11 |
| #3 | Engl Josef Dr | 6 |
| #4 | Engl Joseph Dr | 5 |
| #5 | Joseph Massolle | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ES145103A1 | A machine of periodically variable capacity to transform direct voltage into alternating current. | |
| ES145065A1 | An electro-static station for the transformation of direct current into alternating current. |