| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 4 | |
| #2 | Brazil | 2 | |
| #3 | Germany | 2 | |
| #4 | France | 2 | |
| #5 | United Kingdom | 2 | |
| #6 | Italy | 2 | |
| #7 | Japan | 2 | |
| #8 | Sweden | 2 | |
| #9 | United States | 2 | |
| #10 | Austria | 1 | |
| #11 | German Democratic Republic | 1 | |
| #12 | EPO (European Patent Office) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Swimming pools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Sommer Peter | 11 |
| #2 | Sommer P | 4 |
| #3 | Peteru Zomumeru | 1 |
| #4 | Peetaa Zomumaa | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CH656665A5 | Method and cleaning device for cleaning a water basin. | |
| CH638272A5 | Underwater cleaning device. | |
| DE2726577A1 | CLEANING EQUIPMENT FOR SWIMMING POOLS | |
| CH603915A5 | Swimming pool cleaning machine | |
| CH603944A5 | Cleaning bell for swimming pools |