| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Italy | 8 | |
| #2 | Switzerland | 2 | |
| #3 | Germany | 2 | |
| #4 | France | 2 | |
| #5 | United States | 2 | |
| #6 | Austria | 1 | |
| #7 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Doors and windows | |
| #2 | General building constructions | |
| #3 | Finishing work on buildings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Piana Renato | 13 |
| #2 | Renato Piana | 1 |
| Publication | Filing date | Title |
|---|---|---|
| IT8521332D0 | Relief printing of fabrics | |
| US4173247A | Chambered element for use in forming a roller screen | |
| US4193230A | Covering for building structures and related installation method | |
| CH613490A5 | Extruded tubular bar for roller screens, in particular roller shutters | |
| DE2711568A1 | Tubular bar for roller shutter - has coupling pieces mounted on edges of finishing batten on outside face | |
| GB1262168A | Improvements in revolving shutters for windows |