| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 8 | |
| #2 | France | 7 | |
| #3 | United Kingdom | 5 | |
| #4 | Austria | 4 | |
| #5 | Finland | 3 | |
| #6 | Denmark | 2 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Thermal processes | |
| #3 | Electrical machinery and energy | |
| #4 | Environmental technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Aktiebolaget Elektrometall | 8 |
| #2 | Rudolf Lindblad Axel | 3 |
| #3 | Alexis Groenvall Eugen Assar | 2 |
| #4 | Otto Staalhane | 2 |
| Publication | Filing date | Title |
|---|---|---|
| GB191125862A | Method and Furnace for Reduction or Smelting or Ore with Electric Current. | |
| GB191012430A | Means for Regulating the Electrodes in Electric Smelting Furnaces. | |
| GB190917342A | Improvements in Electric Furnaces. | |
| GB190906088A | Improvements in the Electric Production of Iron and Steel and other Metals, and in Furnaces for Carrying out the same. | |
| GB190904553A | Electric Furnace. |