| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 4 | |
| #2 | South Africa | 4 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | United States | 2 | |
| #5 | Brazil | 1 | |
| #6 | Canada | 1 | |
| #7 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Civil engineering | |
| #3 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Swimming pools | |
| #2 | Unspecified technologies | |
| #3 | Unspecified technologies | |
| #4 | Vehicle parts |
| # | Name | Total Patents |
|---|---|---|
| #1 | Durigon Duilio | 13 |
| #2 | Duilio Durigon | 2 |
| Publication | Filing date | Title |
|---|---|---|
| ZA200100021B | Straining device for a swimming pool weir. | |
| ZA9907765B | Submerged surface cleaner. | |
| AU1674300A | Submerged surface cleaner | |
| EP0745744A1 | A cleaner for a submerged surface | |
| AU6768690A | A relief valve | |
| ZA8903326B | Pool skimmer | |
| US5078863A | Pool skimmer | |
| ZA8706264B | Transmission control locking device | |
| US4884654A | Transmission control locking device |