| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 3 | |
| #2 | Italy | 3 | |
| #3 | United States | 2 | |
| #4 | Australia | 1 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Finishing work on buildings | |
| #2 | Doors and windows | |
| #3 | Swimming pools | |
| #4 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Zen Giuseppe | 11 |
| Publication | Filing date | Title |
|---|---|---|
| US4968005A | Picket attachment | |
| CA1306633C | Picket attachment | |
| CA1239313A | Protective device | |
| US4416084A | Protective device | |
| CA1066933A | Railing joint |