| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Spain | 4 | |
| #2 | Switzerland | 3 | |
| #3 | United Kingdom | 3 | |
| #4 | Denmark | 2 | |
| #5 | Austria | 1 | |
| #6 | Canada | 1 | |
| #7 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Furnaces | |
| #2 | Pig-iron processing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tropenas Alexandre | 11 |
| #2 | Tournier Edouard | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB191320924A | Improvements in or relating to Cupolas. | |
| US880253A | Manufacture of steel by the pneumatic process. | |
| GB190606484A | Improvements in the Manufacture of Steel by the Pneumatic Process | |
| CA101233A | Furnace for the manufacture of steel | |
| GB189908125A | Improvements in the Manufacture of Steel, and in Gas Furnaces therefor. |