| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 7 | |
| #2 | Canada | 1 | |
| #3 | Switzerland | 1 | |
| #4 | France | 1 | |
| #5 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Basic materials chemistry | |
| #2 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Metal production and refining | |
| #2 | Fuels |
| # | Name | Total Patents |
|---|---|---|
| #1 | Weisz Ludwig | 10 |
| #2 | Ludwig Weisz | 1 |
| #3 | Dieterich Ludwig-Maria | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US943724A | Process of briqueting metallic iron. | |
| CA102757A | Production of solid blocks from pulverulent material |