| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 1 | |
| #2 | Brazil | 1 | |
| #3 | Switzerland | 1 | |
| #4 | German Democratic Republic | 1 | |
| #5 | Spain | 1 | |
| #6 | France | 1 | |
| #7 | United Kingdom | 1 | |
| #8 | Italy | 1 | |
| #9 | Japan | 1 | |
| #10 | Netherlands | 1 | |
| #11 | United States | 1 | |
| #12 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Pig-iron processing | |
| #2 | Climate change mitigation in goods production | |
| #3 | Metal production and refining |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gutschmidt Peter-Michel | 6 |
| #2 | Gutschmidt P | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CH629536A5 | Scrap burning plant. |