| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 16 | |
| #2 | Germany | 15 | |
| #3 | Austria | 11 | |
| #4 | Canada | 1 | |
| #5 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Electric switches | |
| #2 | Electric motor controls | |
| #3 | Distribution of electric power |
| # | Name | Total Patents |
|---|---|---|
| #1 | Leyhausen Wilhelm | 28 |
| #2 | Wilhelm Leyhausen | 16 |
| Publication | Filing date | Title |
|---|---|---|
| GB190612722A | A Locking Device for Automatic Sale Apparatus Provided with Rotatable Plates. | |
| CA333878A | Overload switch |