| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 4 | |
| #2 | China | 3 | |
| #3 | EPO (European Patent Office) | 3 | |
| #4 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Pumps | |
| #2 | Unspecified technologies | |
| #3 | Venting or aerating devices | |
| #4 | Shafts | |
| #5 | Dynamo-electric machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Curtis Douglas Allan | 9 |
| #2 | Hargraves Donald Edwin | 6 |
| #3 | Allan Curtis Douglas | 1 |
| #4 | Davis Nathan Horst | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO2006020964A2 | Solenoid valve and method of assembly thereof | |
| US2007157800A1 | Pump sealing apparatus | |
| CN1826465A | Pump valve with controlled stroke | |
| CN1856925A | Pump motor with bearing preload |