| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 2 | |
| #2 | EPO (European Patent Office) | 2 | |
| #3 | United States | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 | |
| #5 | Argentina | 1 | |
| #6 | Australia | 1 | |
| #7 | Belgium | 1 | |
| #8 | Brazil | 1 | |
| #9 | France | 1 | |
| #10 | Italy | 1 | |
| #11 | Mexico | 1 | |
| #12 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Marine propulsion | |
| #2 | Ships | |
| #3 | Internal-combustion piston engines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dawson Edward S | 5 |
| #2 | Inwood Thomas J | 4 |
| #3 | Dawson E | 3 |
| #4 | Dawson E S | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US4538996A | Jet propelled boat | |
| AU6645681A | Power operated surfboard | |
| US4274357A | Power operated surfboard |