| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 16 | |
| #2 | Austria | 1 | |
| #3 | Switzerland | 1 | |
| #4 | Spain | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Thermal processes | |
| #3 | Civil engineering | |
| #4 | Machine tools | |
| #5 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Pig-iron processing | |
| #2 | Casting metal | |
| #3 | Details of furnaces | |
| #4 | Hydraulic engineering | |
| #5 | Iron and steel production | |
| #6 | Foundry moulding | |
| #7 | Venting or aerating devices | |
| #8 | Metal-working | |
| #9 | Furnaces | |
| #10 | Metal production and refining |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rexroth Alfred | 17 |
| #2 | Sopp Franz | 1 |
| #3 | Alfred Rexroth | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ES295300A3 | Pneumatically powered loading device for the introduction of foundry material (Machine-translation by Google Translate, not legally binding) |