| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 14 | |
| #2 | Germany | 1 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Civil engineering | |
| #3 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Alloys | |
| #2 | Pig-iron processing | |
| #3 | Rolling metal | |
| #4 | Foundations and excavations | |
| #5 | Machines for making railways | |
| #6 | Structural elements | |
| #7 | Building materials | |
| #8 | Metal production and refining | |
| #9 | Swimming pools | |
| #10 | Iron and steel production |
| Publication | Filing date | Title |
|---|---|---|
| GB400911A | Rail | |
| DE421991C | Process for the production of hematite pig iron |