| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Australia | 3 | |
| #3 | WIPO (World Intellectual Property Organization) | 2 | |
| #4 | Canada | 1 | |
| #5 | EPO (European Patent Office) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines | |
| #3 | Chemical engineering | |
| #4 | Transport | |
| #5 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Non-positive-displacement pumps | |
| #2 | Rotary-pistons | |
| #3 | Unspecified technologies | |
| #4 | Rotary pistons | |
| #5 | Sewers | |
| #6 | Separation | |
| #7 | Load transportation vehicles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Muhs David | 12 |
| #2 | Parma Gianfranco | 6 |
| #3 | Prairie Douglas S | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US2011008183A1 | Vacuum source and float valve for a self-priming pump | |
| US2011044827A1 | Self priming pump assembly with a direct drive vacuum pump | |
| WO2008089437A1 | Vacuum pump with wear adjustment | |
| US2008175722A1 | Vacuum pump with wear adjustment | |
| US2008175723A1 | Vacuum pump with wear adjustment | |
| AU3768300A | Pump assembly and related components | |
| CA2363602A1 | Pump assembly and related components |