| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 5 | |
| #2 | United Kingdom | 5 | |
| #3 | France | 3 |
| # | Industry | |
|---|---|---|
| #1 | Basic materials chemistry | |
| #2 | Materials and metallurgy | |
| #3 | Environmental technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Aarts Jacobus Gerardus | 3 |
| #2 | Aarts Christiaan Josephus Godefridus | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB246132A | Method of converting potential energy into external work | |
| GB246130A | Manufacture of finely subdivided carbon | |
| GB238270A | Improvements in the reduction of iron ores | |
| GB234951A | Oven for treating iron ores | |
| GB215724A | Improvements in processes and apparatus for reducing iron ores |