| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 4 | |
| #2 | Australia | 3 | |
| #3 | United Kingdom | 3 | |
| #4 | Brazil | 2 | |
| #5 | Germany | 1 | |
| #6 | Denmark | 1 | |
| #7 | Italy | 1 | |
| #8 | United States | 1 | |
| #9 | WIPO (World Intellectual Property Organization) | 1 | |
| #10 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Casting metal | |
| #2 | Pig-iron processing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Vallak E | 8 |
| #2 | Vallak H | 2 |
| #3 | Oberg Karl-Erik | 1 |
| #4 | Allvin B | 1 |
| #5 | Sandberg Hans Karl Gustav | 1 |
| #6 | Rosenwald Vambola | 1 |
| #7 | Vallak Hannes | 1 |
| #8 | Vallak Enn | 1 |
| #9 | Eketrop Sven Gustaf Harald | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1595737A | Casting metal ingots | |
| AU3430571A | Method and means for deoxidizing siliceous steel baths | |
| GB1350470A | Method and apparatus for casting metals in ingot moulds |