| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Belgium | 2 | |
| #2 | Germany | 2 | |
| #3 | Finland | 2 | |
| #4 | France | 2 | |
| #5 | Canada | 1 | |
| #6 | Switzerland | 1 | |
| #7 | EPO (European Patent Office) | 1 | |
| #8 | Spain | 1 | |
| #9 | United Kingdom | 1 | |
| #10 | India | 1 | |
| #11 | Italy | 1 | |
| #12 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Machine tools | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Casting metal | |
| #2 | Nails | |
| #3 | Making screws | |
| #4 | Soldering, welding and flame cutting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Engeler Walter | 5 |
| #2 | Thalmann Armin | 2 |
| #3 | Feldmann Albert | 1 |
| #4 | Engeler W | 1 |
| #5 | Mayer Hermann | 1 |
| #6 | Muff Anton | 1 |
| #7 | Berset Jean-Louis | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0004541A1 | Screw, especially thread forming screw and screw forming thread roll for this screw | |
| US4165780A | Method of continuously casting metals, especially steel in an oscillating mold |