| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 9 | |
| #2 | United States | 3 | |
| #3 | Australia | 1 | |
| #4 | EPO (European Patent Office) | 1 | |
| #5 | Republic of Korea | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Environmental technology | |
| #3 | Chemical engineering | |
| #4 | Mechanical elements | |
| #5 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Oklejas Eli Jr | 9 |
| #2 | Oklejas Jr Eli | 4 |
| #3 | Rensink Andrew Thomas | 2 |
| #4 | Oklejas Eli | 2 |
| #5 | Rensink Andrew T | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US6713028B1 | Rotating process chamber with integral pump and energy recovery turbine | |
| US6116851A | Channel-type pump | |
| US6309174B1 | Thrust bearing for multistage centrifugal pumps |