| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Belgium | 1 | |
| #2 | Canada | 1 | |
| #3 | Switzerland | 1 | |
| #4 | China | 1 | |
| #5 | Czechia | 1 | |
| #6 | Germany | 1 | |
| #7 | France | 1 | |
| #8 | United Kingdom | 1 | |
| #9 | Italy | 1 | |
| #10 | Japan | 1 | |
| #11 | Netherlands | 1 | |
| #12 | Taiwan | 1 | |
| #13 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Thread cutting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Thun Ernst | 10 |
| #2 | Erunsuto Touun | 1 |
| #3 | Ernst Thun | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB9400019D0 | Tapping device | |
| DE4304583A1 | Overflow tap |