| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 6 | |
| #2 | Germany | 5 | |
| #3 | Switzerland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Measurement | |
| #3 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Cables and insulators | |
| #2 | Swimming pools | |
| #3 | Testing of structures |
| # | Name | Total Patents |
|---|---|---|
| #1 | Unternehmungen Motor-Columbus | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE872109C | Portal mast for electrical high-voltage lines | |
| DE411814C | Post insulator made from suspension insulators | |
| DE413301C | Suspension or tension insulator | |
| DE441230C | Double-cap type suspension isolator | |
| DE467978C | Insulator chain with metal screen |