| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 4 | |
| #2 | Denmark | 3 | |
| #3 | Germany | 2 | |
| #4 | Austria | 1 | |
| #5 | Belgium | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | Finland | 1 | |
| #8 | France | 1 | |
| #9 | Italy | 1 | |
| #10 | Netherlands | 1 | |
| #11 | Norway | 1 | |
| #12 | Portugal | 1 | |
| #13 | Sweden | 1 | |
| #14 | United States | 1 | |
| #15 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Medical technology |
| # | Technology | |
|---|---|---|
| #1 | Nails | |
| #2 | Diagnosis and surgery |
| # | Name | Total Patents |
|---|---|---|
| #1 | Schefer Arnold | 15 |
| #2 | Bappert Adolf | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CH703627A1 | Anchor sleeve. | |
| CH634387A5 | Expanding dowel having an attachment screw | |
| DE2729828A1 | EXPANSION DOWEL | |
| CH620503A5 | Plastic expanding dowel | |
| CH608866A5 | Plastic expanding dowel |