| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 2 | |
| #2 | Belgium | 2 | |
| #3 | German Democratic Republic | 2 | |
| #4 | Germany | 2 | |
| #5 | France | 2 | |
| #6 | United Kingdom | 2 | |
| #7 | Netherlands | 2 | |
| #8 | Poland | 2 | |
| #9 | United States | 2 | |
| #10 | Switzerland | 1 | |
| #11 | Czechoslovakia | 1 | |
| #12 | Italy | 1 | |
| #13 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Pig-iron processing | |
| #2 | Climate change mitigation in goods production | |
| #3 | Iron and steel production |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kessl Werner | 11 |
| Publication | Filing date | Title |
|---|---|---|
| FR2392119A1 | CAST IRON MANUFACTURING PROCESS | |
| DE2727896B1 | Use of silicon carbide pellets as a cupola additive | |
| GB1274709A | Shaped articles containing silicon carbide for cupolas | |
| DE1583262B1 | Silicon carbide-containing moldings for cupolas |