| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 21 | |
| #2 | United States | 5 | |
| #3 | United Kingdom | 2 | |
| #4 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines | |
| #3 | Materials and metallurgy | |
| #4 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Turning | |
| #2 | Unspecified technologies | |
| #3 | Metal tempering | |
| #4 | Furnaces | |
| #5 | Punching metal |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ernst Blau | 5 |
| #2 | Blau Ernst | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB331463A | Improvements relating to drivers or chucks for turning lathes | |
| US1827136A | Driver for wheel lathes | |
| US1725331A | Surface plate for wheel lathes | |
| US1736694A | Stop for locating work in machine tools | |
| US1725330A | Surface plate for wheel lathes | |
| US1459874A | Curve-forming rest for machine tools | |
| GB195482A | Improvements in or relating to copying slide rests for wheel turning lathes or the like machine tools |