| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 10 | |
| #2 | Denmark | 4 | |
| #3 | Switzerland | 3 | |
| #4 | France | 3 | |
| #5 | Spain | 2 | |
| #6 | United Kingdom | 1 | |
| #7 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Machines | |
| #3 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Metal tempering | |
| #2 | Metal-working | |
| #3 | Unspecified technologies | |
| #4 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Schaffer Friedrich | 22 |
| Publication | Filing date | Title |
|---|---|---|
| GB112986A | Improved Method of and Apparatus for the Heat Treatment of Manganese Steel Articles. | |
| US1227962A | Method of making car-wheels. |