| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Denmark | 16 | |
| #2 | Switzerland | 5 | |
| #3 | Canada | 3 | |
| #4 | Austria | 2 | |
| #5 | Spain | 2 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Fluid heaters | |
| #2 | Domestic stoves |
| # | Name | Total Patents |
|---|---|---|
| #1 | Andersen Gustav | 21 |
| #2 | Gustav Andersen | 5 |
| #3 | Jacobsen Hugo | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ES132977A1 | A process for the production of metals and carbon alloys, with a very small carbon content. | |
| ES132975A1 | A procedure for the reduction of minerals, with the corresponding oven for its realization. | |
| CA351275A | Metal and alloy production | |
| CA473514A | Electric heaters of the panel or bottom moulding type | |
| CA349207A | Ore reduction |