| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 2 | |
| #2 | Australia | 1 | |
| #3 | Canada | 1 | |
| #4 | Germany | 1 | |
| #5 | Spain | 1 | |
| #6 | France | 1 | |
| #7 | United Kingdom | 1 | |
| #8 | Hungary | 1 | |
| #9 | Italy | 1 | |
| #10 | Japan | 1 | |
| #11 | Norway | 1 | |
| #12 | United States | 1 | |
| #13 | Yugoslavia (Serbia and Montenegro) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Environmental technology | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Climate change mitigation in goods production | |
| #2 | Metal production and refining | |
| #3 | Milling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Cromwell Paul J | 6 |
| #2 | Cromwell P J | 3 |
| #3 | Ny Williamsville | 1 |
| #4 | Pooru Jiei Kuromuueru | 1 |
| Publication | Filing date | Title |
|---|---|---|
| YU308378A | Processing of slag | |
| FR2390507A1 | METHOD AND APPARATUS FOR RECOVERING METALS FROM SLAG | |
| US4126673A | Method for processing dross |