| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 3 | |
| #2 | Canada | 3 | |
| #3 | EPO (European Patent Office) | 3 | |
| #4 | New Zealand | 3 | |
| #5 | United States | 3 | |
| #6 | WIPO (World Intellectual Property Organization) | 3 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Marine propulsion | |
| #2 | Non-positive-displacement pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Davies Barry John | 17 |
| #2 | Paterson Paul Mark | 12 |
| #3 | John Davies Barry | 1 |
| #4 | Mark Paterson Paul | 1 |
| Publication | Filing date | Title |
|---|---|---|
| NZ587752A | High mass and low pressure liquid propulsion with counter-rotating impellers with reversal of drive to impellers to reverse flow direction | |
| NZ539561A | Propulsion or pumping device with impellers on counter-rotating shafts deflecting in lateral directions | |
| NZ526666A | Impeller drive for a jet propulsion unit |