| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 5 | |
| #2 | WIPO (World Intellectual Property Organization) | 3 | |
| #3 | China | 2 | |
| #4 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Chemical engineering | |
| #4 | Engines, pumps and turbines | |
| #5 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Venting or aerating devices | |
| #3 | Pumps | |
| #4 | Separation | |
| #5 | Pipes | |
| #6 | Cleaning | |
| #7 | Transport or storage devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Doig Ian Dracup | 11 |
| Publication | Filing date | Title |
|---|---|---|
| WO2009124335A1 | An improved filtration barrier | |
| CN101156009A | Improvements in valves and pumps | |
| EP1872036A2 | Improvements in valves and pumps |