| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 3 | |
| #2 | EPO (European Patent Office) | 3 | |
| #3 | New Zealand | 3 | |
| #4 | United States | 3 | |
| #5 | Australia | 2 | |
| #6 | WIPO (World Intellectual Property Organization) | 2 | |
| #7 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Pumps | |
| #2 | Venting or aerating devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Grapes Robert Donald | 16 |
| #2 | Grapes Robert D | 1 |
| Publication | Filing date | Title |
|---|---|---|
| NZ531822A | A membrane pump | |
| ZA200302333B | Pneumatic pinch mechanism for a deformable tube. | |
| NZ524871A | Pneumatic pinch mechanism for a deformable tube | |
| AU8456301A | Pneumatic pinch mechanism for a deformable tube | |
| EP1009944A1 | A flexible tube pinch mechanism | |
| NZ500357A | A flexible tube pinch mechanism |