| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 15 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Materials and metallurgy | |
| #3 | Organic fine chemistry | |
| #4 | Packaging and shipping | |
| #5 | Mechanical elements | |
| #6 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Rolling metal | |
| #2 | Casting metal | |
| #3 | Punching metal | |
| #4 | Making metal chains | |
| #5 | Heterocyclic compounds | |
| #6 | Shafts | |
| #7 | Transport or storage devices | |
| #8 | Pipes | |
| #9 | Soldering, welding and flame cutting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Roeckner Dipl-Ing Martin | 5 |
| Publication | Filing date | Title |
|---|---|---|
| DE510497C | Process for the production of segregation-free, cast hollow bodies |