| # | Country | Total Patents | |
|---|---|---|---|
| #1 | China | 7 | |
| #2 | EPO (European Patent Office) | 2 | |
| #3 | Republic of Korea | 2 | |
| #4 | Mexico | 2 | |
| #5 | Canada | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Rotary-pistons | |
| #2 | Lubricating of machines | |
| #3 | Rotary pistons | |
| #4 | Lubricating | |
| #5 | Special wind, spring and weight motors |
| # | Name | Total Patents |
|---|---|---|
| #1 | Valkenberg Ralph | 6 |
| #2 | Kutzer Hans Peter | 5 |
| #3 | Arnold Manfred | 3 |
| #4 | Morton Paul | 2 |
| #5 | Ralph Valkenberg | 2 |
| #6 | Sy Michael Benjamin | 1 |
| #7 | Hughes Matthew Tyler | 1 |
| #8 | Morton Paul M | 1 |
| #9 | Wang Liping | 1 |
| #10 | Kowalski Andrzej | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CN105874202A | Variable displacement vane pump with thermo-compensation | |
| US2016186623A1 | Variable displacement vane pump with integrated fail safe function |