| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 6 | |
| #2 | Italy | 4 | |
| #3 | WIPO (World Intellectual Property Organization) | 3 | |
| #4 | Russian Federation | 2 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Venting or aerating devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ravetti Roberto | 15 |
| Publication | Filing date | Title |
|---|---|---|
| EP2562457A1 | System and process for intercepting and bypassing gases on risers | |
| EP2213925A1 | Electroweldable fitting made of polyethylene for big-diameter ducts | |
| WO2010055539A2 | System for plugging ducts and actuating device for such system | |
| RU2484355C2 | Closing system for pressurised pipelines | |
| RU2485377C2 | Compact flap valve | |
| EP0488966A1 | Stopper device for gas tubes |