| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 12 | |
| #2 | Spain | 2 | |
| #3 | Switzerland | 1 | |
| #4 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Machines | |
| #3 | Electrical machinery and energy | |
| #4 | Chemical engineering |
| # | Technology | |
|---|---|---|
| #1 | Working metallic powder | |
| #2 | Milling | |
| #3 | Magnets and transformers | |
| #4 | Non-metallic elements | |
| #5 | Unspecified technologies | |
| #6 | Separating solids |
| # | Name | Total Patents |
|---|---|---|
| #1 | G Hartstoff-Metall A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB233720A | Improvements in and relating to processes and apparatus for granulating metals |