| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 8 | |
| #2 | Germany | 4 | |
| #3 | France | 3 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Thermal processes | |
| #3 | Materials and metallurgy | |
| #4 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Special electric heating or lighting | |
| #2 | Furnaces | |
| #3 | Details of furnaces | |
| #4 | Turning | |
| #5 | Pig-iron processing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Russ-Elektroofen Kommanditgese | 8 |
| #2 | Kannen Ernst V | 2 |
| #3 | Rohn Johann Peter | 1 |
| #4 | Rohn Joh Peter | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE1211756B | Induction channel furnace with interchangeable melting channels | |
| DE1083509B | Electric multi-chamber melting furnace for melting down metals with a melting chamber and a holding and removal chamber | |
| DE1060067B | Low-frequency channel induction furnace | |
| DE1003878B | Induction channel furnace |