| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Finland | 7 | |
| #2 | WIPO (World Intellectual Property Organization) | 6 | |
| #3 | EPO (European Patent Office) | 5 | |
| #4 | China | 4 | |
| #5 | Canada | 2 | |
| #6 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machine tools | |
| #3 | Engines, pumps and turbines | |
| #4 | Textiles and paper | |
| #5 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Servomotors | |
| #2 | Venting or aerating devices | |
| #3 | Pistons and sealings | |
| #4 | Punching metal | |
| #5 | Mechanical control devices | |
| #6 | Rotary-pistons | |
| #7 | Unspecified technologies | |
| #8 | Calendars |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ropponen Vesa | 22 |
| #2 | Vesa Ropponen | 3 |
| #3 | Ropponen V | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FI20060991A0 | Instrument for controlling the oscillating cylinder | |
| FI20060956A0 | oscillation cylinder | |
| WO2007101901A1 | Suction valve | |
| FI20051240A0 | Ring seal between sliding surfaces | |
| FI20050525A0 | The valve structure | |
| FI20041503A0 | Arrangements in connection with an oscillation cylinder | |
| FI20041494A0 | Arrangement in connection with an oscillating cylinder | |
| FI20041153A0 | Suction | |
| US6272968B1 | Control system for an oscillation cylinder |